I think I end up on foot in this scenario. Carrying my GHB and as much other gear from my car as I could. Sounds like there would be many others in the same situation and what working roads there were would be congested anyway. (Now I'm looking at Chisel's "Possible Scenario".)

My $500 car isn't going to be attractive to very many people anyway, and my insurance company would probably be happier paying damages sustained while it was parked than being driven after I loaned it to someone else. If they want it, go ahead and steal it and good luck!