There was a minor fender bender to start, and the SUV driver pulled over to try and take care of that issue. The bikers then started damaging his vehicle and threatening him. Rather than get out, and put himself, his wife, and his small hold into danger, he fled...running over a couple of bikes as he did so.
The bikers gave chase and kept trying to open his door, or break his window...but the guy kept getting away.
The SUV driver really messed up when he got off of the freeway and got caught up in traffic. That’s when one biker used his helmet to break the driver’s window and pull him out of h car and beat him.
IMHO, what the driver needed at the end was a conceal carry 9mm or .45 with. High capacity magazine.
An incident like this may have easily ended differently here in Southeast MO, where many travelers carry weapons.