Driving down Highway 190 from Slidell, this guy rides my bumper all of the way through Lacombe. Highway 190 is a 2-lane highway. He seemed aggravated that I was doing the speed limit, 40 MPH, through the town of Lacombe. When the speed limit went back up to 55, he made his move to pass in the oncoming traffic lane across a double-yellow line. Less than a mile later, he makes a real slow right turn in front of me.