What is the most racist city or town you have ever been in?

My parents told me this story. Back in 1984 when we were moving from Houston to Chicago, we stopped for gas at a town in Arkansas. As we were about to leave, a local sheriff came up to us and talked to my parents for a couple of minutes, and then recommended that we leave by the time the sun went down, for our own safety. In fact, it was probably best if we just got back on the highway right away.