A local Chevron station near me has one. Next to it is a vending machine that sells tubes, Kevlar spoke replacements, chain oil, patch kits, assorted energy bars, sunscreen, etc. There's also a pump/gauge for inflating your tires.

Here's a short ride we took that stopped at it shortly after it opened and we took a few pictures:
Dublin - Danville ride - Road biking trip | EveryTrail

It'd be nice if they became common, but the chance that I'd happen to be near this one just when I need a repair is pretty remote.