At one point the nearest location to me set it up such that I had to interact face to face with 3 people before I would get my food - one to take my order, one to take my payment, one to give me a receipt. Then I'd actually get to the window and be handed my food by a fourth person. This slowed things down substantially because the pattern was so far outside what customers expected. Employees frequently had to chase down people because they didn't stop for their receipt...because where the hell did the idea of a receipt pickup station come from anyway?
The end result is I only go to C-F-A anymore if ordering online ahead of time is convenient. At least then I'm back to the single face-to-face interaction at the point of food delivery. I have zero desire to interact with their employees more than that.