There is little chance I could just post up cameras wherever my ex travels and note all the time she arrives and leaves at all intersections and get away with that without at least a restraining order ordering me to stop. What they are actually doing is stalking by method of a network of cameras deliberately installed to follow people from place to place. It isn't generalized observation in pursuit of speech, it arguably isn't even speech, but rather mass individualized stalking. Maybe 1A allows that but that doesn't seem to be the law on the books for anyone else trying to stalk people in such a way.

Personally I don't have a huge problem with 1A being broad enough to including recording literally everything in public and meticulously cataloging and following everyone, but only if the rest of the amendments are read in the same broad and literal manner. Meaning I can own nukes, I don't have to display a plate, the 10th amendment would stop the feds from outlawing intrastate weed, etc. What it looks like what happens is the feds cherry pick interpretations of the bill of rights to trump up their powers and then give the least charitable interpretations to the plebs.