I'm not sure abour San Angelo, but I'm orginally from Winters, which is between San Angelo and Abilene. It's a small town, but Shop is on the main street through town - name of shop is:
Bluebonnet Mercantile, 106 S Main St, Winters, TX 79567, 325-754-4057
We go to Winters every summer in July for my family reuntion and I also try to make it to the shop.
Good luck and enjoy yours trip.