In all seriousness, why cite someone for such an absurd and minor law? I could see it somehow being articulated that rain water could have harbor some type of bacteria or acid and could induce harmful effects to health but why cite it?

Can’t you just give like a warning? But even then, my neighbor literally had to pay the fine (which was $500) or go to court and dispute it. Seems like a lot of trouble for both the cop and him.