I could really go off on all the morons here in Fairfax VA, home of the most unskilled, self-entitled and distracted drivers you'll ever have the displeasure of sharing public roads with, but I'll keep it quick.
As mentioned above, nobody here knows how to merge. People are constantly slowing down (and occasionally stopping!) on highway on-ramps because they just can't figure out how to do it safely.
Also, in the rare instances that drivers actually use their turn signals to change lanes, it's used more as a warning, like 'Look out, here I come!' rather than 'Hey, I'd like to come over, would you mind making room?'. They use it like they are giving you fair warning, then immediately start moving over regardless if there's room or not. Sorry, that's not how it works.
And if any state needs a cell phone ban while driving, Virginia is it. When you are driving your car, it should have all of your attention, not splitting it with your conversation with Jennifer who is complaining about that mean stuff that Susie posted on her Facebook page, what a jerk her boyfriend is, how cool Kim Kardashian is, and the awesome shoes she just bought. You're chatting away, driving erratically in the left lane, and messing up the flow of traffic. I'm trying to get somewhere!