I mainly made it for those that tailgate with their high beams on. Most of the time, they get the hint and turn their high beams off and so I turn it off too. But there are those that won't dim their lights so I keep it on and they usually slow down and back away.
I just had one slow @ssh0le on the passing lane that won't move. Turned the lightbar on and still won't move so I passed him on the right. When I was in front of him, he turned the high beams on his cheap drop in HIDs on me so I turned the PT54s on. He dimmed his lights instantly and backed off.