This happened to a friend of mine while he was riding home from work. He was passing the ghetto part of town. A car was stopped at a stop sign. My friend proceeded to carry on and the driver looked at him and he looked at the driver. When he was in front of the car, and the driver put on the gas. Some people just don't care. The car kept going so it was a hit and run. My friend tore his pedal strap, and popped a tube. His back wheel was also destroyed. He was also sore for days after that. It was about 5 in the morning at this time so there were no cars around. You're lucky that you got some pain killers, witnesses, and a case! Best of luck, ride safe!