Larry King apparently wasn't the only one who wanted "more introspection" from Paris Hilton.

In response to the part of Hilton's postincarceration interview with the CNN talk-show host in which she said that she'd like to work with Mothers Against Drunk Driving, the nonprofit outfit explained why it might not be ready to make the heiress a poster girl just yet.

"We have reservations about her behavior thus far," MADD spokeswoman Misty Moyse told a Los Angeles wire service Monday, seemingly unimpressed so far by Hilton's statements that she saw the light while spending 23 days in jail for repeatedly driving with a suspended license while on probation for a drunken-driving-related charge.

"Typically, we've only worked with high-profile figures if there's true responsibility for those actions," Moyse said, adding that, as far as she knew, MADD hasn't yet heard from anyone representing Hilton, nor has the organization reached out to Hilton.

"Typically, we wait until the case is closed. There's just a lot of parameters we have to look at at our end, regarding the person taking responsibility and other things."

Hilton's publicist, Elliot Mintz, has not yet responded to a request for comment.

Hilton, who returned to Los Angeles early Tuesday morning after a five-day get-away-from-it-all trip to Maui, told King last Wednesday that, though she at first thought that she was slapped with a raw deal by getting jail time and not just community service, as her lawyer had predicted, the time away was really "a blessing in disguise."

Regarding the DUI that kicked off the ensuing mess back in September, Hilton said: "I'll never make that mistake again. I take full responsibility. And I hope by me serving this sentence, and I know it has helped, because I've received a lot of letters from different people that they've made the mistake of drinking and driving. And because I went through this, like, wow, it could happen to me, too."

But that new brand of self-awareness may not be enough for the decades-old MADD, founded in 1980 by a California mom whose 13-year-old daughter was killed by an intoxicated driver with three prior drunken-driving convictions.

Citing Hilton's behavior as an example, MADD National president Glynn Birch issued a statement June 7 saying they would like to see at least a one-year ignition interlock provision added to people's sentences after they're caught driving with suspended licenses after being busted for a DUI. (The system prevents a car from starting if the driver's blood-alcohol level is above a preset limit, determined by blowing into a small sensor attached to the dashboard.)

"Paris Hilton and the number of many other high-profile celebrities and sports figures committing to drunk driving offenses are alarming, and this problem needs to stop. Hilton has not been responsible in using her celebrity during this time," the statement read.

"Additionally, if high-profile celebrities and athletes can afford alternative transportation, MADD wants to know why aren’t they using it?  It should not be a rite of passage in Hollywood to have a drunk driving arrest, but based on recent media accounts, MADD’s beginning to wonder if this is not the case."

On June 7, Hilton was remanded to house arrest after three days behind bars after Los Angeles Sheriff Lee Baca saw fit to transfer her due to an undisclosed medical condition, that Hilton later described as a series of panic attacks brought on by claustrophobia.

By June 8, medical and psychiatric tests had shown that Hilton was well enough to be back in jail.

During last week's interview, King questioned Hilton about MADD's perception of her, and asked whether she planned to work with the group.

"Yes, I'd love to work with them, and I think me, by doing my sentence and doing my time, I have served as a bit of an example and I want to continue to do so," the Simple Life star said.

Hilton went on to say that she is not a big drinker, despite her being a fixture on the international party circuit, and that she had never taken drugs.

"People make up so many crazy stories," she said. "The things I read about, and things I see is not the person who I am. It really baffles me sometimes when I read things. The places I've never been. People I've never met. It's really shocking to me."

King told E! News' Ryan Seacrest the following day that he doesn't think "anyone believes that she's never done drugs," but that it seemed Hilton was being honest "for the most part."

"She gives you shorter answers than you would like. I might have wanted more introspection," King said.

Celebrities who have made the grade in the past with MADD include Nick Cannon, Hilary Duff, Nelly Furtado and skateboarding icon Tony Hawk, all of whom were featured in the group's 2005 Backstage Pass school assembly DVD, which was shown in thousands of junior high and high schools nationwide.

MADD's "primary concern" about Hilton, Moyse said, is "the kind of messages being sent to the public and young girls nationwide about the seriousness of drunk driving and drinking by those under 21."

Apparently there are plenty of people who are more than happy to cash in on Hilton's frequent brushes with notoriety, however. An empty can of Party Animal dog food plucked from one of the celebutante's trash cans fetched a whopping $305 on eBay.

Hollywoodstartrash.com also auctioned off two white envelopes sent to Hilton while she was in jail for $510 and an empty Coca-Cola can for $51.

(Originally published on July 2, 2007, at 5:14 p.m. PT)