You can't even hide anymore.Check this out ...

It is a public place. I would expect any one with binoculars could see more than this. So, there is no invasion of privacy.
Invasion of privacy is when you are not in a public place such as your back yard with a privacy fence and you have a helicopter take a picture. Or when someone puts a camera on a long pole and sticks it up to your window and takes a picture thru your curtains. When you are in public, you can have no expectation to privacy.