People don't. It's crazy, both the quantity and the pure unwillingness to turn on lights, or engage.

I begin with lights flashing, lots, so it can't be mistaken for a dip in the road, then I go with turning my fog lights on and off, then I turn my lights on and off, then I beep, and then finally, if possible, I drive past, making hand signals.

Without fail, it doesn't work.

I was walking down by the library recently and someone was stopped at the red with their lights off and once of the security guys for a restaurant across the street spent a good minute trying to get the driver to turn their headlights on.