Hilton has checked out.
After spending the better part of the day behind bars since being booked on suspicion of driving under the influence Tuesday morning, Barron Hilton posted $20,000 bail at around 5:45 p.m.
A trio of friends put up the amount through a bail bondsman after the Hilton family appeared content to let him spend the night in jail, as reported earlier by E! Online senior editor Marc Malkin.
Hilton exited the station through a rear door, jacket over his head, and hopped into a silver SUV with two guys and a woman inside, none family members.
Sources close to Paris Hilton confirm that Barron phoned her earlier Tuesday asking for help, but, at the urging of her parents, she declined to post bail for him.
"It broke her heart, but she did what her parents thought was best," the insider tells E! Online.
Los Angeles County Sheriff's Department spokesman Officer Steve Whitmore said Barron Hilton's bail was upped to $20,000 from the previous $5,000 because he is now facing a felony charge of possessing a forged California driver's license in addition to misdemeanor DUI.
The third of Kathy and Rick Hilton's four offspring has been ordered to appear Apr. 14 at the Malibu courthouse.
And Barron Hilton's rap sheet could get meatier still if charges are filed in connection to the smashup the hotel heir was involved in shortly before his arrest.
Not long before Paris Hilton's 18-year-old brother was arrested, witnesses saw his black Mercedes E350—with an unidentified woman at the wheel—sideswipe a grey Ford Ranger pickup truck on the Pacific Coast Highway in Malibu and continue on its merry way.
The other vehicle's presumably peeved driver followed Hilton, who at some point got in the driver's seat, and his cruising partner to a gas station on PCH, where authorities eventually caught up with them—although not before, according to eyewitness accounts, Hilton had a run-in with a station employee's leg.
Per the L.A. County Sheriff's report summing up Hilton's arrest at 8:05 a.m. for alleged DUI, the California Highway Patrol was investigating a possible collision that occurred while the unnamed woman was driving.
CHP Public Information Officer Leon Hines said the Mercedes bumped into the Ford at 6:10 a.m. while heading north on PCH just above Sunset Boulevard.
The driver of the Ford continued to follow the Mercedes to Coral Canyon at PCH, and that's where CHP responded to the call and began the preliminary collision report, Hines said. Neither of the drivers involved appeared to be under the influence.
As for the man whose leg got in the way of Hilton's car, he told the New York Post and TMZ that, after the impact knocked him over, leaving him with some bruises, two men jumped out of a Ford with a dented left side and grabbed the keys out of the Mercedes to prevent the car's occupants from driving away again.
The driver of the truck had called the police en route to the gas station, and he had Hilton wait it out on a bus bench until authorities arrived.
Hilton, who blew a 0.14 percent on a Breathalyzer test and was found to be carrying the fake ID, was booked into custody at the Lost Hills Sheriff's Station at 8:35 a.m.
—Additional reporting by Tina Dirmann