"the OP's shop" American Cyclery is not a co-op, tho they USED to keep a track pump (chained) at the front door that anyone could use to fill up tubes with pure SF air.
I will take a stroll to Stanyan and Frederick and see what the sign(s) say.
I have had all sorts of service performed by that shop BITD but for me this means around 1998 was the last time.
I seem to have all the tools I need now to do my own work.
And they certainly worked on bikes I did not purchase there (I could never afford their prices on complete bikes, but sure have bought parts and more parts from them)