I have a CD of bagpipe music that I can play when one of those **THOOMP** cars comes up beside me....turned up, it can compete. I use it sparingly, mostly when I won't offend other suffering motorists.

(I first tried this many years ago when a guy across the street was playing LOUD rock out his front door...I put my speaker in the door and turned UP the bagpipes....he got the point.)