In liberal societies we don't typically require citizens to rearrange their activities, their lives, the way they go about their business, to make it easy for the police to do their work.
The rule of law doesn't mean the police are in charge, but that we all answer to the same laws.
When the police officers knock on your door with a warrant, they don't expect you to give them a tour. It's supposed to be an adversarial process so that it's used in these extraordinary powers are applied only when there's no alternative. Only when they're absolutely necessary, and only when they're proportionate to the threat faced by these individuals.
