My guess is the driver didnt want to risk an altercation seeing as how there was a crowd right at teh scene and phoned police from a safe location. Probably not in trouble if this were the case.
no matter what happens, both drivers were in the wrong. if the judge/magistrate is as much of an inbreed shit-hook as the one i had to deal with here in Clinton twp, the biker will probably end up with a careless driving ticket and the SUV driver would get hit and run to the fullest.
if i were them ( the bikers) i would put that video away for court.