People should have a reasonable expectation of privacy in society and this seems to go directly against the grain of that belief.
There hasn't been sufficient push back to stop this erosion. Worse there isn't sufficient push back against government agencies holding back information which they are bound by law to surrender.
Is that really the justification, though? The only justification I've heard is that you have no reasonable expectation of privacy when driving down a public road. It has nothing to do with you v. your property or the fact that your license plate does not have constitutional rights.
The courts have agreed that you can't mindlessly swap out a police officer for a computer, save all the data and keep going as you were, but that doesn't change the fact that you do not have any reasonable expectation of privacy in public.
Recently, I also learnt that even in the Magna Carta (1215 BC) the property of a "free person" was protected against the grasp of the potentate.
When modern governments now disable this basic right by legal trickery, than we in essence loose our freedom.