I see no reason why the Supreme Court wouldn't uphold this.

Earlier this year the Supreme Court ruled in an 8-1 vote that police can enter a home, without a warrant, if they believe that evidence is being destroyed inside.... So a cop can claim he heard a toilet flush, or water running, or whatever, and knock down the door, without a warrant.

And the Supreme Court voted 8-1 in favor. Strange how "freedom" smells like bullshit.