Hopefully,the young man will learn some respect and leave her alone. If it were me, I would be concerned.
"Taunting"? By meowing? And, the government is called in to defend her - FROM MEOWING?! Nonsense.
And, of course the child is being obnoxious, and the parents probably don't control his obnoxiousness as well as they could/should, but this is ridiculous.
You could even make the argument that the child sees this as being an egregious case of obnoxiousness on the part of the elderly adult, and that this is his measured and restrained way of expressing his disapproval.
Whatever, to get the court system involved is waaaaay over the top, and just flat wrong.
ever heard of freedom of speech?