Okay, but that doesn't answer the question. Would you want a complete ban? Privacy is a pretty nebulous concept. You obviously have to draw the line between privacy and security somewhere.
You can say the ends don't ever matter, but generally things are a balancing act. Bodycams obviously reduce people's privacy, but the accountability provided was considered to justify it. Metal detectors obviously reduce people's privacy, but people justify that by the ends too.
Typically in the US, we give up privacy rights to things done in public and not to things done in private unless if a judge agrees to a warrant.
It's already legal for police to send out an amber alert and have everyone look for a license plate. How is that practically any different than flagging it in a computer and having it alert you automatically when it's viewable in a public place?
Finding a computer reading your license plate in public to be an "unreasonable search" is definitely not apparent from the Constitution or any mainstream interpretation of it.
