I know for a fact that many transit districts record audio and video. I know for a fact that Lane Jensen has embarrassed drivers and Trimet (even though they aware that he was recording) causing Trimet to quote a law that was intended to protect 'private conversations', not conversations on a public bus. But now We have an actual transit district employing its whole fleet with audio recording. Complete opposite from Trimet secrecy goals.
But there are some people that are not happy about it. Still have never seen any court case involving this issue but there is a discussion now about the policy of recording audio at Baltimore MTA. Lets see if this goes to court and get some precedents to study. Of course this case involved institutional spying, not some guy with a video camera
Wells said audio recording was approved by the state attorney general’s
office. A spokesman there confirmed that transit officials have been
advised that audio recording doesn’t violate the state wiretapping law.
MTA recording bus conversations to help investigators but some call it privacy violation - The Washington Post
MTA recording bus conversations to eavesdrop on trouble - Baltimore Sun
REMEMBER, ALL PEOPLE HAVE TO DO IS INFORM OTHERS YOU ARE RECORDING, THEY CANNOT, REPEAT, CANNOT TELL YOU TO SHUT IT OFF, ALL THEY CAN DO IS SHUT UP.