And if you're driving, the best thing is to move down from the road where it's safe, turn off the light until visibility will get back to something you could see and then drive.
The other thing I want to mention that's really cool is that they actually have screens where the lights are that can project messages to pedestrians on the street.
This means not going for downhill KOMs when you're in a bunch. This means not trying to be as fast as you can off the lights, speeding away and dropping the entire bunch.