Sorry to hear that buddy...go to the (any) dealership PRONTO- like TODAY - and tell them what you need, they'll be able to get you moving in the replacement/recoding of the key. Until you get a new and reprogrammed key, park your car in some place where access is difficult for the "thieves" to return and take it easily. Not likely to return, but then again they didn't take your keys as a trophy either.