Well Luke, I never got my car stolen, but something else had happened to me a few years ago. I came home from work, locked the car, went up into the kitchen and actually sat at the window that overlooked my car (I was busy eating my meal) - and when I came out again... the license plates were gone. Went to the police and they said that they were probably stolen to be used in a crime and that it was a good I immediately detected it and brought it to their attention. End of story was I lost a half day of work and 150DM to get me new license plates.
I was thinking the same thing: "What the hell is this neighbourhood coming to?! A man can't sit down for five minutes and eat his soup without getting his license plates stolen!" Last but not least, I have only one pulp fictionary advice left for you nimrods out there: "Don't fuck with another man's automobile!". Go and play GTA on the PS2 or your PC instead (but if you have none, please don't steal mine).