sounds like some kind of road rage, even though there wasnt an accident, i figure that would still fall under some kind of assault (with a weapon/vehicle) and fleeing the scene of an accident. when i was in college, i interned at enterprise. my first week, i get rear ended by an older gentleman at a stop light who simply let his foot off the brake. i still had to get a report because of liability issues even though there wasnt any damage. the cop was so mad, he wrote me a ticket for no insurance even after i showed him our self insurance certificate and my personal insurance card! crazy.