the cops might have just told someone to tell him to quit it.
same thing happened to me kind of.
i came home from college from break and asked my friend if our normal reliable fall back dealer still was around and he actually said no the cops came to his front door and said to his brother "tell your little brother we know whats going on and we advise it stop"

now this kid was pretty well known with the cops beforehand and stuff but still it must of sucked. at least they didnt arrest him.