Ok, let me start by saying 3 things:
1. I hope this guy didn't get hurt.
2. I do not condone trying to record video while driving.
3. I still laughed.
The woman who is recording the video is going the speed limit and this guy keeps tailgating pretty close until he eventually passes her and starts giving her crap. Maybe he'll think twice next time he decides to be a moron on the road.
WARNING: OBSCENE GESTURE IN VIDEO