The thirsty scarecrow and a selective cap policy

I was told to remove my cap upon entering the restaurant due to security reasons or turn the cap , I was told to do this 5 times , there were about 9 other peoples they did not even bother to intimidate, why be so selective and discriminating , I asked them to take a photo of me , I don't look like a armed ****** , I wanted to enjoy a meal with my wife and son , this is unaceptable