That assumes police would respond quickly enough in this locale (they wouldn’t, you have to say someone is in danger for them to come quick), and that the taxi

That assumes police would respond quickly enough in this locale (they wouldn’t, you have to say someone is in danger for them to come quick), and that the taxi driver would care, since they might be betting (correctly) at worst, the police would ask them to leave the premises. He was told not to come into the hotel anymore, but he did anyway. Any other solution would have taken too long to implement compared to just changing the locks on the doors and making the housekeepers happy, who you kind of need to operate the business.