I had an appointment booked and when I got there, I was not wearing a mask due to an exemption and I was let in then as soon as I was in and the door closed I was told that I had to wear a mask. I said I have an exemption and she said it didn't matter, and that I had to follow their rules. I asked if their rules superceeded the Constitution and she said it doesn't matter I have to follow there rules. She then said if I don't leave they will call the police. I recorded this conversation and left.