Why would it fall apart? The plain view doctrine holds that the police don't need a warrant to observe things in plain view. Like your car driving on the public roads.
Privacy laws are generally about protecting what you do in private, not in public. In the US, anyone can film you in public, government or otherwise.
Privacy laws are generally about protecting what you do in private, not in public. In the US, anyone can film you in public, government or otherwise.