I've only helped out with DriveUp once, and only with running orders to the cars, so feel free to ignore. Ultimately, my opinion is that two minutes is just not enough time.
In that one shift, I had four different guests not even bother to hit the "on my way" button till they were already *in* the parking lot. No way we can do a bloody thing about that.
I know that my GSTL closed out at least one order on me because I was having issues with the DriveUp app not scanning the guest's barcode. Eventually I hit the "barcode not working" button and her order vanished entirely, so I really hope that it processed. She was one of the ones who didn't tell us she was coming until she was already on site, so I was down almost a full minute just from locating her order in the bins.
I also think the placement of the DriveUp parking spaces in comparison to doors is poorly planned. At least, at every store I've seen it at. Now, my store happens to have a fire exit into the TSC that's right in front of our DU spaces. If that alarm could be disabled, and we could put DU staging adjacent to that door, it would in fact help our delivery goal times by quite a bit. Anything we can do to shorten the physical distance that a TM has to travel in order to get the delivery done has got to help.
By the way, those 3 TMs that were hired specifically for DriveUp that I mentioned above? All gone already.