Seems like he got voted 1 star on his yelp page because of the "whites only" sign.

Whites only sign in the window. You only want the white man's business? Let's see how long you stay in business depending on white people to buy from you. Black folks dont spend your money here. He'd probably sabotage your mean on purpose

"Whites only" and the reviewer tells black people not to spend their money at Chicken Wangs. What a genius.