I feel your pain. I went out today and saw a car at the top of the hill I was coming up on with his tail lights on, I thought, great, its backed up all the way to the top of the hill. But nooo, when I get to the top of the hill, there is only him and me and he's breaking all the way down the hill, at least 500 ft before the lights. Then he turns right (I had to turn right too) and it was a painfully slow turn, then same thing as you, leaves 20 car lengths between him and the car in front. I finally passed him and kept watching as cars were almost getting into accidents trying to get around him. Stay home or take the bus or back roads if your scared, Sheesh.
Joey