Comment by toomuchtodo

McDonald’s and Taco Bell actually have a great, working solution to this. You order in their app, and they provide a code you give to the drive thru attendant (to pick and place the order into the queue). The customer places their order on their own mobile device at their own pace, but you still have a human for people who don’t use the app or don't have a mobile device. They provide free food and other incentives when placing your order with the app, which I think is fine from a behavioral economics and price discrimination perspective. No AI required.