The shocking video shows the mother of three arguing with officers outside of the police station, even doing a bit of vocal impersonation of one of the officers. When the arresting officer explained to her that she needed to stay inside of the vehicle, she argued: "I understand. I understand. And I'm not trying to cause any problems…I am pregnant, early pregnant, it's an early pregnancy."
(She admitted on Good Morning America she was saying "crazy things," and she is not, in fact, pregnant.)
Witherspoon continued with a second officer, saying, "I am allowed to ask if you are a real police officer? I need to see verification! Sir, you're going to make national news, you're arresting me."
The Legally Blonde star then launched into a seeming vocal impersonation of the officer when she added, "And he said, 'I'm not going to give you real ID!'"
While exiting the vehicle at the police station, she shouted and laughed, "They arrested me!"
But things got decidedly more somber while at the police station.
Witherspoon told another officer that she's trying to keep her pregnancy on the down-low.
"I was afraid you would tell people, I am trying to keep it a secret," she said.
The officer assured her that he won't say anything to anyone. But unfortunately the events were caught on tape for the world to see.
Yesterday, Witherspoon agreed to pay a fine for obstruction, and husband Jim Toth plead guilty to first offense DUI and will perform community service, pay a fine and remain on probation for 12 months.
—Additional reporting by Emily L. Foley