So, I've not waited in a single line since the start of the shelter in place order. Here's where I've been shopping:

1. The Market in the Twitter building;
2. Golden Veggie on Polk at California;
3. Chinatown (though fewer shops are opening now, which is worrying);
4. A variety of small groceries in the Lower Nob/Nob area, including the Viet place on Larkin between O'Farrell and Ellis, California Grocery on Polk between O'Farrell and Geary, LeBeau Market on Leavenworth between Sacramento and Clay;
5. The Ferry Building; and
6. Heart of the City Farmer's Market at Civic Center on Wednesdays and Sundays.

Hope this can be of some use! Should have posted a month or more ago.