This is truly disturbing! How was this even allowed? This makes me not want to stat at Poly until it is resolved. My father is a fire fighter and I've heard too many stories about what happens when people can't easily exit a building.
I do hope that you raise the issues to anyone who will listed. I commend your attitude about not trying to get anything in return other than your mom being happy and perhaps changes for the future. We are coming up to our first
DVC trip this September and makes me sad that DVC members are treated differently to other guests. Not only did we pay/are paying for our trips in some way, we will ALWAYS be paying in annual dues. I've heard several stories that make me shake my head, but this is the worst.
I hope the rest of your trip is a happy one and without incident!