They hit you, and then left the scene, which qualifies as "hit=and-run". It is actually illegal in most states to leave the scene of an accident, however small. This person hit you, caused your car damage, and then left without offering to help you pay for the damage they caused, which is against the law. Instead of feeling guilty, you have the right to get angry. Anyways, I hope your insurance has a "hit-and-run" clause which helps cover your repairs. Good luck to you in getting your repairs in a timely manner you can afford.