The actress surrendered as a formality on Tuesday, a day after accepting a plea deal in her misdemeanor car crash case. The actress was immediately released.
The deal includes spending 90 days at a locked rehabilitation facility with no day passes. She also has to serve 30 days of community labor and 18 months of psychological counseling.
By taking this deal, she avoids jail time. There was a mandatory requirement for five days in jail that was folded into the rehab time. She will also be on probation for two years.
Lohan pleaded no contest Monday to reckless driving and lying to police who were investigating the accident involving the actress last June along Pacific Coast Highway. A charge of obstructing an officer was dropped.
This is Lohan's seventh mug shot, but one from New York was not released.
Meantime, the 26-year-old took to Twitter to shoot down recent rumors. The actress tweeted she didn't go out and party after court.
Instead, she says she stayed in her hotel, ordered sushi and focused on the road ahead.
She added, "Don't believe EVERY little thing you hear, unless you hear it from me. The support I have gotten, has been great and means a lot."
Lohan has a hearing on May 2 to show proof she has enrolled in psychological counseling and community labor.