I think it's apples and oranges though. With a photo lab the customer has deliberately handed over whatever images they want developed, whether the images are private or not. Tesla employees sharing images from cameras that some people may have plausibly not even known were there feels like much more of a violation.
If an vacation rental landlord planted secret cameras and...
Bad news all around.
Yes, secret cameras can get the host in trouble, but poke around at airbnb listings and you'll see cases where everyone reports highly visible internal cameras.
I'm not saying its good.
Remember the olden days of photo labs at the mall that would run the pictures visibly in front of the window?
They don't do that any more, but the employees still point and laugh while they are in their possession. Right or wrong, it is human nature, when they all technically have access.