The out of state students are absolutely horrid drivers in Provo, especially when you mix in weather coniditions. I don't think on a general level I have noticed much of a difference though, just the normal variations you would expect when population density and road qualities differ in differing places.
Having driven in every state in the USA I would agree with this. I would add that most of the ****ty student drivers in Provo from out of state are from California.