Comment by bevhill
These exist in retail space now, but you can't go there. DashMarts are full-service general stores that delivery drivers stop at to pick up orders. It's like a ghost kitchen but for Dollar General. If they'd open up a "civilian" window then I'd visit every day.
The Best Buy near me is halfway there. They split their previous retail location in half. One half is still a walk-in retail store experience, but much smaller than before and more focused on being a showroom for the more expensive things and only a handful of accessories actually around on the floor. The other half is pretty much a warehouse. Outside, one set of doors is now dedicated to curbside pickup from the warehouse side. In between the doors to the showroom area and the curbside, it's a big set of automated lockers to pick up orders 24/7.
At a lot of the stores that offer it, the curbside pickup is hopping. Tons of associates constantly wheeling out cartloads of merchandise to an ever-rotating group of cars. More and more people opt for the curbside experience it seems, which is pretty much the full-service experience just more asynchronously. I do it from time to time, but typically not for grocery items as I usually don't like the experience of substitutions or the app saying they have something when they really don't.