Not sure about you, but I really dislike any drive-thru that makes you back up once you are at the checkout window to pay and pick up your food.
All they are doing is cheating their system to restart the clock making their manager believe that they are delivering your order in a timely fashion. It is an inconvenience to back up when all I want to do is pay and get my food. I am afraid if I don't back up at their request, they will spit in my food or worse.
I even called to complain to the store manager and additionally to his district manager since they did not stop this bad behavior only to return with no change in place. Each and every visit, they make me back up. I will never return again after my last experience.
Shame, Shame, Shame!