Assuming the police will not compensate the businesses for the cost of developing and deploying this system, this is a clear violation of the takings clause of the fifth amendment.
Nothing being taken. It’s a cost and condition of doing business. The US telecom companies had to build in backdoors for the government to snoop, as a condition of existence.
The Communications Assistance for Law Enforcement Act (CALEA) is a statute enacted by Congress in 1994 to require that telecommunications carriers and manufacturers of telecommunications equipment design their equipment, facilities, and services to ensure that they have the necessary surveillance capabilities ...
Slightly more expensive form of the requirement to put up posters that describe government resources.
Note I am not defending it as right or just. My point is the government will abuse its power six ways to Sunday, and this is not a taking.