Apparently this bear broke in, couldn't get out initially, and ripped apart the gear shift to the point where it started rolling in neutral.
Black bear steals, crashes car in Lake Tahoe
http://abclocal.go.com/kabc/story?section=news/bizarre&id=8343613
Tahoe Bear Destroys Prius
Bear in Lake Tahoe attempts to take car on overnight joy ride.
http://www.nbcbayarea.com/news/local/Tahoe-Bear-Destroys-Prius-129315578.html