My dh is a truck driver. One thing most people don't understand, is that his truck is governed to go 62mph. That means when he heads south and the speed limit is 65-75, he can't go that fast and he is NOT being a jerk to you. The insurance companies have set it up this way and the big rigs end up impeding traffic. Don't get road rage at the driver because there is nothing else he/she can do but go that speed.