I think the better alternative to making engineers "feel uncomfortable opening their door, walking down the street" is for us to collectively ask if the solution isn't to touch more grass and rely less on the technology we've all come to blindly accept as required.
I mean, I hate this QR code shit as much as anyone, but c'mon, we can and should be better - both in how we treat others, and how much we rely on this shit.
That doesn't solve a problem, that ignores a problem.