You know what?? You need to change your name to "Karen C"...a total pain-in-the arse! 
Actually, she's right. Nowhere in the Constitution is the Government granted the power to randomly surveil the population in the conduct of our day to day lives. (The Constitution doesn't grant Rights to people, it grants limited powers to government, and the Bill of Rights and other Amendments were intended to specifically limit those powers.
Virtually every town past the Mississippi River (and perhaps a few East) have markers in graveyards of people who were hanged by mistake. Physical resemblances are not uncommon, in fact I have been told I look exactly like people other people knew in states I had never been in.
Sometimes those people were bad, and when images or appearances were relied on for identification, on occasion, the wrong person ended up at the end of a rope.
That's why fingerprint technology became the gold standard for a long time, to only be replaced by DNA which has less of a chance of misidentification.
This has the potential to be a huge step backward, only automated in concert with facial recognition software, and increase the errors of a century ago.
If the readers are not verified as being 100% accurate, and backed up by another source of information, their veracity is in question.
I'm with Megan on this, because I, too have been at the mercy of the Social Serpents who, frankly, lied their asses off to try to make erroneous charges stick.
They need not set foot on my property ever again, or it will get ugly.
I get along well with police (those ranks have changed since that years long incident where the only ones being harmed were me and my family by the Social Workers), but I got along with the police well even before that. When they follow your teenage kids day in and day out the LSWs will find something they can parse as heinous, even if it takes a ton of embellishment in bureaucratese.
Why distrust? because there were four of us in the same town of 15,000, all with the same nickname. I sent narcs back to the hive with their tails between their legs and the message that it was one of the other three they were looking for, more than once (it got to be a game, really, and I'd even tell them where they 'blew' their cover by the way they acted, flaws in their 'legend', or other tells before I sent them packing.)
I don't need the presence of a camera to do things right, to behave. They say the measure of your character is how you behave when no one is looking. I'd pass fine. Stick a camera over my shoulder and my performance diminishes in quantity and quality. The eyes of God are sufficient, humans need not hover, unless I'm trying to teach them how to do something (Watch carefully, because you get to do the next one! I believe the best way to learn is by doing.)
THe problem isn't that these cameras are being used to read license plates. If you cross a toll bridge or use, say, the PA Turnpike without an EZ Pass or some such, you'll get the bill in the mail if the vehicle is registered to you. I suppose if you were not there, you could contest it, but I was, they did, and they got paid. No problem.
But the cameras won't stop with license plates, and will (if they haven't already) graduate to faces and people movements and interactions. Not specific things like the security cameras in a business covering the entrances, exits, the merch and the till (you know they are there, and if you aren't stealing or otherwise causing trouble, no problem0, but people walking down the street. People who might be misidentified. People who might look just like the person of interest the system flags, and end up arrested or worse falsely...
Or, in the 1800s parlance 'Hanged by mistake'. The process is the punishment.
I don't trust the people wielding these things (as many have already demonstrated) with the power to pick out and follow people on camera without a warrant, and frankly, not even then, because I have seen how the system can be gamed from the inside to produce whatever is needed to get one, justified or not.
