Most grocery stores use off-the-shelf tech for this sort of thing; our business model made a lot of that not feasible and there was a decision made early on to build it ourselves, if anything because the tech we developed could have its own value down the line.
If Wegman's was writing software like this (maybe they do! I have no idea) then I'd happily consider them a tech company.
But like I said, it's a silly thing to argue about anyways.