Man I would look and see what paint traded on your car and drive around looking for them. Like you said,.. they couldnt have gotten very far. I'm wiling to bet right now they are wthin 3 - 5 miles of you.
You may not be able to have the police do anything,.. and I'm not 'officially' suggesting anything here,.. but I am a firm believer in 'street justice'. I grew up with an eye for an eye,.. tooth for a tooth mentality. I've been known to carry a grudge for a long time. Odds are they were either drunk and didnt want to get arrested or young kid that doesnt have insurance. One way or the other I'd take care of business.
Hurst