Of course, you should also “spread the word” about the establishment.
And write letters to the management and owners that black racism is going on in their stores...
Not to worry. I have done my part for spreading the word. I travel a lot and have found that the good places to eat are populated with local old folks and/or law enforcement. I stop at those places only. Look for cop cars in the lot and you can count on good food and if something like the Luby’s incident in Killeen happens, there is a lot of firepower on site.