I wonder. If I setup a Raspberry Pi and a camera near my mailbox, and it tweeted "license plate ABC123 just passed me", for every license plate it saw, would th

I wonder. If I setup a Raspberry Pi and a camera near my mailbox, and it tweeted "license plate ABC123 just passed me", for every license plate it saw, would that be free speech? If many people coordinated and built an open database of people's movements, would that be free speech?