more in my twice-a-year trips to Utah than all the other places combined. And don't get me started on running red lights... I've never seen it like I have on State Street in Orem.
Defenders of the Utah drivers will point the finger of blame at Idaho or California. In my experience (10 years living in the Bay Area), Californians drive really fast and the between-lane motorcycles are sketchy, but drivers will gladly let you in if you put on a blinker and I never once experienced road rage there. I have also lived in Idaho and people there drive slowly and a bit aloof (because there is rarely congestion), but they are happy to give you a wave to let you in and I only experienced one case of road rage there and I totally deserved it.