What's the law/etiquette on the second set of headlights in the bumper?

recently I was following some genius with a set of white off road style lights mounted on the rear bumper and facing BACKWARDS driving down the road at night with them on…after about 50 high beam flashes he still didnt get the clue, christ it was insane how bright that is.

I think they’re practically standard equipment on Grand Am’s, and seem to have no off switch.

The cool thing people want to do around here is drive through town with just fog lights and park lights, no headlights.