Read the signs!
Social media has given a voice to people who take great pleasure in being obnoxious. Space fails to provide a comprehensive proof of this concept; for our purposes here, I will limit my frame of reference to those who take pictures of themselves doing precisely what a sign is instructing people not to do. Walking on the grass, swimming, smoking, the situational prohibitions run the gamut. And the existence of the sign more or less implies that the behavior is not necessarily unlawful; people are simply asked to choose a different time and/or place.
Nope. “Look at me! I’m a rebel! I break rules! No one can tell me what to do!” As the saying goes, it’s all fun until someone gets eaten by an alligator.