This is exactly what the larger chains are trying to accomplish. Let's take McDonald's as an example. I've worked there as a crew member and, many ironic deca

This is exactly what the larger chains are trying to accomplish. Let's take McDonald's as an example. I've worked there as a crew member and, many ironic decades later, currently assist some of their OEMs in the kitchen equipment area. McD has always been a JIT-based manufacturing/assembly company. And their production window isn't a week or a day: it's 10 minutes. Back in the old days when you walked in and there was a bin full of burgers, those were all made to be sold or tossed after 10 minutes. How do you manage that without wasting a single burger? Managers would keep insanely detailed logs of sales by the hour or even half-hour to try and assemble some kind of historical record that could be used to anticipate future demand. They would even record the traffic level outside and weather conditions. It worked pretty well, but one rogue schoolbus full of hungry teens would blow that forecast out the window. The newer systems try to smooth some of that out with heated holding cabinets and faster toasters and et cetera, but there are some things you really can't batch and hold for very long, like fries. Customer demand has also required some of the batched systems go away, like the Quarter Pounders being grilled as they are ordered. So when a batch of fries takes 5 minutes to cook, and you know there's a wave of people arriving, any technique to help anticipate that and trigger a production cycle sooner is ideal. It benefits producer and consumer alike. Mobile ordering isn't a panacea, and in fact the current system isn't very usable at all. But they're trying. And I do know second-hand that they're aware of geofencing but there are complications to a system like that as well.