Ashlee -- Backseat Driving Under the Influence?

3/2/2009 2:30 PM PST BY TMZ STAFF
With Bronx Mowgli at home, Ashlee Simpson hit up the Chateau with her hubby on Friday -- and from the looks of it, it's probably a good thing she took the backseat when they left.

Pete & Ashlee: Click to watch
During her assisted walk to the ride, Ashlee claimed she "loved" the "Howard Stern incident" -- referring to the time her hubby Peter Wentz went on the air and told the King of All Media every explicit detail about their sex lives.

Looks like someone's come out of her shell....