Most people don't think of snowboarders that way anymore
Only a small, bitter portion of the skiing community who have had bad experiences with snowboarders, and I would be surprised if any of them were unprofessional enough to give some of their valued customers a hard time because they chose the wrong hobby.
Where was this anyway? And what exactly did they say that makes you think you were treated this way just because you snowboard?
If it was really that bad I'd keep contacting them until they get sick of you and just give you enough of what you want to make you go away. I don't know if they'll give you a full refund, but if you frequent their chain of hotels it's in their best interest to fix the situation if they ever want to see you again.