Just flash them back. They'll get the message. Going towards the middle line is not a good idea.
FEAR! FEAR! FEAR! FEAR! FEAR! FEAR!
The usual etiquette is to simply flick yours on and off. Sometimes people forget.
Are you sure you're ok, Luna?
ya lol I think my nature is to just try to correct people
That's a pretty Kamikaze way to correct people. XD Considering this situation must be at night, they wouldn't be able to really tell you're play-acting blind, and just be reacting to some person swerving into their lane, without likely realizing it has to do with their lights.
You could explain it to the officer after the accident, perhaps.
or to god at the pearly gates