"He was not at fault," Whitmore said of the "Transformers" actor.
Meanwhile, a person close to the "Transformers" sequel says actress Isabel Lucas was the passenger in Shia LaBeouf's wreck in Los Angeles early Saturday.
The 23-year-old Australian plays a supporting role in the movie.
The person close to the movie's production asked not to be named because he was not authorized to release the information.
LaBeouf's pickup truck collided with another vehicle at 3 a.m.
Sunday in West Hollywood. LaBeouf was booked for a misdemeanor DUI and underwent surgery on his left hand.
Lucas and the driver of the other vehicle were not seriously injured.
Lucas, who not yet performed in any American film but has several upcoming projects, has returned to production on "Transformers: Revenge of the Fallen," which is due out next June.
LaBeouf has been working as an actor for 10 years. He starred on the Disney Channel series "Even Stevens," starred in last year's "Transformers: The Game," and this year appears opposite Harrison Ford in "Indiana Jones and the Kingdom of the Crystal Skull."
In November, he was charged with misdemeanor criminal trespassing after a drunken tirade in a Chicago Walgreens.
He later told David Letterman on the "Late Show": "Drinking and driving is one thing, but drinking and shopping ... it's just as bad."
Prosecutors dropped charges because Walgreens Co. and a security company indicated they didn't want to continue the case.
Two of LaBeouf's publicists did not immediately return calls seeking comment Sunday. Neither did attorney Michael Norris, who has previously represented LaBeouf.
