Then they up and park the car facing you with their high beams on which makes it that much worse.
I've seen school busses with 5 acres of glass on the front and LED lights. If they are oncoming into the morning sun, I have to stop until they pass because I can't see if the lights are flashing or not.
The LED traffic signals can be seen from too far away, too. I know a few that can be seen from 4+ miles away, and they have more than their share of bad accidents.