Oh, man- that is weird!
I guess I'm glad that they didn't take more stuff and screw up the car more than they did, but, hey, there's a definite feeling of being violated.
Do you have an alarm system in the car? Maybe it's time for one of those if you don't have it already. Hope you don't live near Jon's lawyer neighbor who keys cars, though.
Sounds like entrance through the rear lid (as suggested above)- any marks around there?
Bad timing is right- when are you headed to New Orleans?