Just checked and my reservation is still valid on the hotel app and yeah they have no way of knowing what I'll actually be there for, if asked just say business (technically you are there on business) or play just play dumb tourist who didn't know there was an event going on that week and thought you were avoiding the weekend crowds.

Anyhow given how the room rates have more than doubled since last week I'd say that all the regular hotel chains are perfectly happy to take our money.