School Me On This Drive Thru Dance

When Burger King had their Orig Chicken Sandwiches on special, I went pretty regularly. Almost without fail, I would pull to the window, and they would ask me to back up to the 'silver thing on the wall,' obviously a sensor. I thought it was one store with little traffic trying to cook their numbers. This week, I was getting lunch at Popeyes, and the drive thru speaker asked me to pull up to the red pole and wait. Everyone behind was getting the same treatment - pull up to the red pole and get motioned forward when your food was ready. I ate my lunch in the parking lot just to watch the dance..