Originally Posted by
Freebird
After this incident, your best option was to stay at a different place (and request total anonymity there). This would also at least have made it much harder for the caller to find you, as they correctly guessed you'd be staying there again.
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I wonder if staying at a different hotel would even solve the OP's problem. If the stalker knows you will be attending these types of events and doesn't track you down at the Hyatt, then s/he will try other nearby hotels. Although another hotel might SAY they have better procedures in place to protect guests' privacy, as the OP has just discovered, you never know when an accidental privacy violation will occur.
Maybe AirBnb is the answer.