To the actual question people ask, about getting stolen cars off the street, I don't have a good answer. It's a valid point! The stolen cars pose more of a threat to my neighbors than the police do; in reality, the median adult in my neighborhood doesn't believe any of the online rhetoric about how dangerous the police are to begin with.

The reason the current generation of ALPR cameras doesn't work is the one you gave. Illinois LEADS was never intended for realtime enforcement and isn't updated reliably, so we ended up pulling over almost as many innocent motorists as we did stolen cars. To that, add: a plurality of all our camera-driven enforcement actions ended up being failure-to-appeal warrant enforcement, which effectively had our police force doing municipal debt collection for other suburbs, at enormous expense.