When younger and full of T and angrier/bolder, I would either tap the brakes, or give them the back off wave...these days, I may tap the brakes lightly and see what the response is, or just slow down slowly and wave them by.
Surprisingly, or maybe not, even on fairly empty roads/interstates I occasionally find some idiot on my azz...in the X and esp in the Vette, I might drop the hammer and watch them get tiny in my mirror. But lately, with all the angst and acrimony out there on the highways, if the idiot is not texting, I let them go by. If they are texting, I honk and make faces or...
GL out there in WalmartNation bad driver land.
BR, mD