New guests in your old room may see your Apple ID account, but not your password. (Possibly a good hotel does a safety reset of all personal data.)
These users can watch your subscription channels and purchased iTunes Store content.
These users cannot make new new purchases on your account without your password (unless you configured it to never require the password for purchases).
These users cannot use Apple Services through your Apple ID on that device, when you change the password.
Check your Apple ID device list to see where you're signed in - Apple Support
You may be able to sign out remotely from certain devices. For devices that are offline, that sign-out will happen (delayed) when they come online again.