I have the same thing happen to me. Apparantly GPS directions to somewhere is wrong or something and I get about 20 turnarounds everyday. About 10 times every night after dark and it drives the dog crazy because when the cars turn around the headlights flash through a big picture window into the den.
I made a cardboard sign and staked it at the edge of the drive: HEY YOU NO-DRIVING IDIOT: YOU MISSED YOUR TURN!
I took it down after a week because of all the horn blowing.