Never been refused at the pump. On Tuesday morning, at about 5:45, I did have an attendant try to tell me something over the intercom, a couple of times though. No idea what. I just looked up at the camera and shouted, "I can't hear you. I'm wearing a helmet", then went back to filling up.
Oh, and I always pay at the pump too.
Oh, and I always pay at the pump too.