Wanna know how I would have handled it? the same way i did handle the few road rage incident I have been involved in: Diffuse, control and protect my family. I learned this while dealing with crowds and Serbian in Bosnia in 92'.
Ok that's all well and good...what if you were one of the bikers? Since you are defending their actions so vociferously (man I love that word) then you clearly approve of their actions, am I right?
Think of how stupid the average person is, and realize half of them are stupider than that - George Carlin