I don’t think any of us have a right to privacy in public – that’s the difference between “private” and “public”. !!
I think GOVERNMENT surveillance in public should be restricted. Strict time limits on retention of footage and especially audio, punishable by serious prison time or even public hangin’ if violated.
There IS an expectation of privacy in public — e.g. no one expects a conversation on a park bench to be recorded and retained forever. Sadly, most Americans don’t live in cities, so they don’t see the need for privacy in the public domain.
On the other hand, government officials themselves should have no expectation of privacy whilst on the job. Get a job with that much power, sign away your rights.