Why have installations or stores at all? Just have a self driving and self making burrito trucks. You order one up, and on the way to you, it's being made in the back. Little hatch on the side, shoots out onto your doorstep or through your window.
Then, of course, you've now got an arms race of self making burrito trucks roaming about. Chipotle has one, Taco bell too. And, of course, if a Taco Bell truck knows that a Chipotle truck is next to it on the freeway, well, I mean, there's no one inside it of course. How could you prove that those nails came out of the bottom of the truck anyways?
Pretty soon, we've got burrito trucks duking it out, battle bots style, on the freeways and streets. And then you gotta deploy countermeasures, armor, etc. Just to get your burrito to you. Order up two from different companies and you've got dinner and a show.
And, honestly, is this not the future we all really want? Giant junk food filled mech-cars blasting each other at high speeds from the comfort of our couches.