BTW, I forgot to mention that you don't have to have wheel-lock keys to get off wheel locks... I've known people to just hammer a socket on there and undo the locknuts. Also, I've heard that you can just take an impact gun to it and get it off with a socket around the same size as well.
*shrug* It all comes down to if someone wants it, they will be able to get it if they are smart enough. (or brutal enough for that matter)