I didn't have to stop. I was on hwy 101 and the car behind me only had it's parking lights on in the dark. I tried making it so that she ended up right on my bumper, hiping maybe she'd notice that she wasn't seeing the reflection in my bumper of her lights...then I tried moving slower and then giving it some gas to put some distance between us so that maybe she'd notice how dark the road in front of her was. I also tried tapping my brake lights in rapid flashes, but that didn't work.
Finally, I grabbed a sharpie in my pocket, and a packate of papers for work (which I can reprint later) and scribbled "HEAD LIGHT" (I ran out of room for the "s") in thick letters, and tried holding it out the window while the traffic was only about 5mph. Obviously, since she didn't have her headlights on, she couldn't see it. Finally, I took out my phone, turned on the camera flash into "flashlight" mode, and shined it onto the paper, trying to keep the paper straight and stiff with my left hand, and reaching over and trying to shine my phone's light onto the sign with my right hand, all while steering with my knee (have no fear: I'm a pretty damn-good knee steerer).
Finally, she saw it, and turned on her headlights! Yay! As I changed lanes to the right as my exit approached, and continued on, with her interior lights on, smiling and waving as she drive by me.
Damn she was cute.
Dumb, but cute. :lol: