Not being in the article may not necessarily mean it isn't. Hopefully, it means all metro parks.
While these folks keep telling us, they are just like us, this is just another example that shows, well, no they aren't. If the public school systems and the teachers unions have their way, more heterosexuals will act this way, but so far, parents are prevailing!
You may be right, but I'd be inclined to overstate the number of places where the cameras were going to be so as to discourage the behaviour more or less pre-emptively. I'd rather stop the behaviour through intimidation than have to use the video in a prosecution which will bring in all the ACLU types.