If I was in a position to be concerned, I'd keep Wireshark open and go to the elevator and see if the music was in sync/starting at the same time. If it wasn't, that would send up some red flags for me.
Again, if I were in a position to be concerned - I'd move hotels with Wireshark actively monitoring and verify the network traffic dropped when I left the WiFi range, and also what kind of UDP/network traffic was at the next hotel.
But if I were in a position to be extremely concerned, I'd probably just throw everything away to begin with, including the clothes I was wearing, buy a laptop/ new clothes, and then, after escaping out the back of one of the stores and getting picked up by a random taxi service and driven a good distance, go to a hotel without an elevator and check the Wireshark traffic.
Unless it was some sort of very sophisticated monitoring, I would hope one of these strategies would provide some answers.
Again, if I were in a position to be concerned - I'd move hotels with Wireshark actively monitoring and verify the network traffic dropped when I left the WiFi range, and also what kind of UDP/network traffic was at the next hotel.
But if I were in a position to be extremely concerned, I'd probably just throw everything away to begin with, including the clothes I was wearing, buy a laptop/ new clothes, and then, after escaping out the back of one of the stores and getting picked up by a random taxi service and driven a good distance, go to a hotel without an elevator and check the Wireshark traffic.
Unless it was some sort of very sophisticated monitoring, I would hope one of these strategies would provide some answers.