How bad are the drivers in your state?

Architect-turned-long-haul-trucker leighton has been everywhere, man, and probably thinks you're a lousy driver:

I drive in all of the lower 48 States, usually with a 53ft trailer and sometimes in a band tour vehicle yanking a trailer. Traffic generally has to pay more attention to a long vehicle, so I get to observe, up close, the good, bad and Hitlarity of every one of you. This is an assessment based on 10+ years of doing this type of driving.

How does your state rate? The survey includes a map of the U.S. highlighting the most annoying and potentially fatal regions to drive in.