Just a quick general rant... oberservations I've formed over time...
I swear, I have said it previously, but each time I take a road trip down 95, or down I-85 I'm proven more and more right.
Driving down I-95, once you get past Richmond is a virtual dream, compared to driving along I-95/I-495 once you get past Richmond, VA, and up near DC. From that point on, I swear they must perform some sort of lobotomy by satellite based lasers or some such on the drivers that are on the road.
Things are a bit more crowded than the over 20-years ago when I was commuting back and forth down to Fort Bragg for some "Haaaaaarmy Training, Sir!" but the friendliness of the drivers has remained near the same.
Generally people in the south pass on the left, then move back to the right lane, unless they are generally running faster than anything else on the road.
Get up to the Richmond area, and the closer you get to D.C., and then much worse, the closer you get to NYC or Boston areas the worse it gets. People forget about courtesy, park themselves in the left lane and never leave it, and generally behave like idiots behind the wheels. I wish we could take all of the north-eastern area drivers and ship them out to California, or down to the south for a while. Such bad manners and bad behavior, and the saddest part is that many of the same people are found driving along (as tourists) in the southern areas behaving as pretty as you please.
Maybe it's something in the water, maybe it's those space based laser weapons that people need tin-foil hats to protect themselves against, but it's something. It's always something.