ULPT request: Need to send a message to my drug dealing neighbor

I want to first point out that I have no issues with providing party treats or weed to people, heck I used to do it myself when I was young.

But my neighbour is a bit of a nuisance and I want to send a message. He runs up and down the stairs of our apartment building several times per day to run to a waiting car, which wouldn't bother me otherwise but he does it all night too, disrupting everyone's sleep. And his other neighbor is a single mom with a preteen kid, which could be scary for them.

At least once a week there'll be someone aggressively banging on the building door at night, and he often has loud friends come over.

One weird thing is the number of WIFI hotspots. At any given time there's at least half a dozen, and sometimes up to twenty when there's guests. Wrists up with that? One thing I'd like to do is name my WIFI something funny in reference to his shenanigans.

All tips welcome, but keep it non-hostile (for now at least). I just want him to know we're all aware of what he's doing and that he should keep it on the dl or gtfo.