This was years ago, but I had a similar issue of not being able to SSH in a hotel. I talked to the front desk and they were able to grant me access to a different network that didn’t have that blocked. I can’t remember whether I had to pay for it or not…
Don’t you just love when a user submits a ticket that’s “super urgent, this is preventing me from doing my job!” and when you ask how long it’s been happening: “Oh, about a month”