A passenger who recorded this video, while sitting in traffic, says the dispute started when one driver tried to move into another lane.
But the man in the truck apparently would not let him in.
When the first driver eventually moved ahead, he stopped his car in the fast lane, got out and confronted the man in the truck.
The yelling escalated to spitting and then as the man in the SUV drove onto the shoulder to move around he clipped the car and the impact rolled the SUV onto its side.
No word if anyone was injured.