What would I do ... all of the following
Cry
Watch Netflix
Eat chocolate and drink wine
Cuss everyone from my mother , to my dog to , trip advisor
Stamp my feet
Ring my friends and moan
Post on here 😄
Actually it's never actually happened but I've had a few hotels where I've felt really uncomfortable so have just written it off as a loss or stayed the night and got a refund back for the following days
Did you pay in advance or was it a flexible booking
If it was a flex booking / free cancellation just ask reception if you can check out tomorrow and how much money will you get back .
Make sure you ask this before check out time
Hotels are totally used to people checking in and then leaving early so don't worry about what they might think
Just say you need to get home family emergency
Can you name the hotel so that we can all avoid it if it's keycarded