DONT BREAK THE GLASS!!! lol, I'm sorry but that's a really dumb idea. You shouldn't have put the bowl that visible anyhow but im sure you were fucked up so it's understandable. You don't have any spare keys? If anything I would call AAA w/o you parents and have rolling tobacco on you or something and go for the bowl with the tobacco in your hand. Thats what I would do, theres a few ways to play this off. You could also just tell the AAA guy its none of his damn business, I don't think he's going to suggest that you smoke marijuana when theres an offchance you don't.