Replying to Little legal question.

i was on my way to class this and was stopped dead at a red light,its snowy as FUCK,not very much traction, hard to stop, etc. some car came up behind me and rear ended me. the hit was not very hard at all, like i wasnt even sure i had just been hit and the car was alot lower than my truck, so im pretty sure the guy just my hit my tow hitch because when i checked when i got to class there was no damage at all. if he did hit my trailer hitch it probably cracked his grill or dented his hood a little.

anyways, it was freezing cold, snowing, i was gonna be late for class, i was sure the guy hadnt hurt my truck and my license is already suspended. i turned around in my seat, checked out the guy and his car to make sure he was ok and saw it was still running, as the guy opened his door to get out, the light turned green and...


i drove away.

lets say the guy that hit somehow got my plate number (not likely, covered in snow) and for some reason called the police? would i be in alot of trouble? or just a little? or none at all? i mean, he did hit me. like, should i even be worried about this?