I'm not entirely sure what led to this argument, but then again, I'm not sure it matters. Because for this bus driver, the finish is everything. He's like a beautiful gymnast of confrontation, once his windows get smashed, he just gets out of there without a care for what's in his way. A stunning pirouette of revenge and flight.
He absolutely made the right choice here, I just hope he didn't damage any innocent people's cars too badly.