My former pet peeve about local drivers is that so many of them won't get over and let you merge when you try to enter the freeway. I'm moving on from that though. My new pet peeve is people who drive in the left lane- sometimes barely going the speed limit.
I had noticed it in the past, but hadn't really thought that much about it until some friends in town from Western Washington recently pointed it out to me. Since then, I can't count the times I've been stuck in a stream of traffic in the left lane while some clown in the lead does 58 miles per hour and won't change to the middle lane. So this is my campaign to get the word out- CHANGE LANES. Tell your friends please.