OK so we don't know what was happening before the video so I can only comment on what I see in it. A group of bikes, all seem to be doing the legal speed. Cops intentionally holding them (and everyone else) up on the Bay Bridge. For what purpose? Are they planning on citing them all? If so for what? They expect them to stop as a group so they can jack them all up for whatever they were planning on?
I completely understand the bikers decision. Why pull over like a herd of sheep and have to hassle through the courts to get whatever they are going to charge them with dismissed. They can't catch them all, if they all run.
Further reason why I A) don't ride in groups B) don't trust that the cops are out there to protect and serve.
If I am riding along and I see cops doing this, I guarantee you my first impression is they are there are NOT here for the purpose of my safety and well being.
What the cops should have done is ride in with a team of motorcycle cops, so they have the resources to legally cite for an infraction, and then pull each over individually. 50 cops, 50 bikes. Do the job right, otherwise its just a bunch of wasted effort and as the video shows, works about as good as a fish out of water.