[legion]

Going the opposite direction? Nothing.

Going the same direction? I stay respectfully behind the procession so that it can travel intact.

The laws in most states state that the first car in the procession must obey all traffic laws, and the cars following must follow the lead car. So if a light turns red in the middle of a procession, the following cars can go through the light. I will wait patiently for the procession to pass. The last thing a grieving family wants is some jerk in a hurry.