A YouTube video apparently has exterior shots of supermarkets (and other retail stores) from northern San Mateo County (and possibly San Francisco) from circa 1971-72. See:
https://www.youtube.com/watch?v=ANVzJeVjnoc
Supermarket exterior shots include:
12:29 Mayfair Market (unknown location)
13:06 Safeway (unknown location)
14:11 Petrini's Manor Market (unknown location)
14:54 McCambridge's Miraloma Market
15:12 Tower Market
16:19 Lucky (unknown location - tall pylon sign)
24:15 front of unknown store (Roger Wilco???)
25:17 (probably the most visually interesting part of the video) patrons exit unknown store (Roger Wilco???)
In the comments section, a "Robtimus Cron" wrote: "These are all along the San Francisco Peninsula. I can identify the exact location of several of them. I left out the one's I can't figure out
1:58 Kmart, El Camino Real, Colma (it's now a Kohl's)
3:01 White Front, 16th Street, San Francisco
4:51 Gemco, Serra Center, Colma (it's now a Target)
11:06 Walgreens, Westborough Square, South San Francisco (still open, but in new building)
11:17 Longs Drugs, Serramonte Mall (now a gym)
11:39 "Medical Pharmacy" Grand Ave, South San Francisco"