Most people here dont even realize they are riding your ass. In either case, I always switch lanes and give them a taste of their medicine. I am used to driving 90 mph with maybe space for a scooter so fuckin bring it on. Not bragging and I do have friends to confirm that I have made people take exists and pull to an empty parking lot at 3am because they were riding my ass and I just showed them how to really do it.
Another thing I do is to drop 2 gears, let them get a little closer and gun it. I apparently have a diesel evo so my exhausts spits black shit on whatever is behind me. Bikes get it the worst lol. I like to call it "taking a shit on you".