I saw a road-rage rear-ender right behind me while I was out running errands on Friday afternoon. 15 minutes later, in the Lowes parking lot, two guys were yelling at each other about bad driving and "come and get a piece of me."
Keep a bottle of mace and a taser at the ready.
I am on the road 90% of my time. Some idiot gets in my face they get peppered. To top it off I get out and Taze their ass.
Just drive away and report some nut on the ground in front of wherever.