Forget "quiet red areas". Every suburb surrounding mine, in Chicagoland(!), has expanded their use of ALPR cameras. People want them, not just in red areas.
I have my complaints about this, but "blue areas" over the last several decades have meant "all major metros", and some forms of crime are just endemic to density, and in some sense all crime simply tracks population.
But we don't have to agree on that; people everywhere care about crime, and the promises ALPR vendors make, while arguable, are not ludicrous.