That's crazy. Never heard of anything like that happening before. Sounds like they don't deserve your business.
I remember the first time I encountered a station that refused to serve me unless I removed my helmet. I was visiting a friend over in Nottingham and had never encountered that before. When I asked if they withhold service from women wearing niqabs or burqas they had no reply but still wouldn't play. I guess what I learned is that sometimes we have to concede to petty tyrranies, regardless of logic or reason.