[7steps2much]

Depending on where you are located you might want to check if your cameras offer a "black out" function. The camera essentially censors all public space with black bars.

That said, as far as I remember legality of this approach was "undecided" in a few places

[sschueller]

I purchased one with the feature, dumb part is, it's a PTZ camera and the blackout part moves with the PTZ...