Asklemmy

I'm surprised you didn't knock on their door yourself and say "hey, me and the other neighbors are concerned".

I'm also sure a motel has terms and conditions as well as faculty of its own. Calling someone wouldn't have been unforgiven.

I have a slightly different perspective/experience with police. I might not see their justification as perfect given they're appointed on a statehood basis and I don't see the state's authority as binding, but all my experiences with them have been somehow positive, more positive than I can say my experiences with civilians are, especially those who try to backseat drive how order in the world works. If I have a threshold like is asked, it's the time I called them to tell them a park faucet was broken and leaking, the kind people might use for a hose, and people were livid at me the next day when the faucet was barricaded with "out of order" barriers, like they'd rather massively waste a resource than give up an asset.

Imminent danger. Call the cops.

Yikes. I'd have called the cops in your situation, if for no other reason than the potential of shouting to turn into something worse as tempers escalate.

I don't have an ironclad rule when it comes to cops, but in general, I avoid interacting with them in any way unless there's violence afoot. I carry a non-lethal weapon so I have a means of defense if something happens to me, but I don't trust American cops not to shoot people, so it has to be an explosive situation before I'll engage with them.

If you see something, say something. I've called for lots of things - old man barely walking down the street when it's >100F outside, guy in a bullet proof vest and a hoodie when it was super hot out, couple screaming horrible violent things at each other, ... Basically any time i think, "huh, someone more qualified should check on that."

ETA- in that case i would have called the front desk.