Id go lookin for them, you know what they say on all cop shows, most crimes are commited within 10 miles from the perps residence. And when you find them, you let the police know, becuase from my perspective, the police really wont go "looking" for the suspects(again, my perspective). If its true that they asked about you car befor, and you caught them this time, then I doubt they will come back..............................Does your car have an alarm.. maby you should booby trap the car so next time they try this theyll really be sorry
just a thought lol