First come IS NOT first serve no more

My friends and I wanted to have breakfast this morning at wimpy keywest. There was no one by the door when we got there so we went in and started looking for an available table inside as it was cold to sit outside. We spotted one that was been cleared by the waitress and we decided to wait there for her to finish. She then asked us to wait by the door and will let us know as soon as she was done. This specific table was now given to people who came after us, we tried to explain to this lady 'Gladness' who happens to be one of the duty managers there, and was not interested in what we were trying to say. She then said that when we came in we just went passed her and didn't even ask anything