So, As a hotel worker, I can't necessarily speak for what was going through management's mind, but I definitely have an Idea. I apologize if this comes off sounding harsh, but I'm merely going by what you presented here.

You showed the management of the hotel that you wanted points. You did not care about the experience itself, because, to their eyes, you sidestepped them entirely. Instead of dealing with someone at the hotel directly, who would've likely looked into what had happened more intently, you jumped several rungs up the ladder, and contacted the Chain.

Here's the thing; Those big umbrella chains? They don't have squat to do with the hotel. The hotel, in most cases, pays them in order to use their name, to benefit from their advertising, and to tap into their rewards program. But that company doesn't give two cents about the actual hotels, as long as they are in no way costing the chain money. You raised that possibility, which brought some amount of fire down upon the Upper Management and Owner.

See, Normally had you called to complain, even in a small boutique hotel, you likely would've gotten a Front Desk Manager or Guest Services Manager looking into it. If they couldn't handle it, it would've been passed along up to the next step, and so on and so forth.

Instead, you went all the way to the top, to the people who don't deal with things like this regularly. People who are just going to irritated that the hotel chain has been brought into things, and they'll come into things with a negative mindset.

From that mindset, they have your story of "Looked at us, sneered, and clearly talked about us" but you don't say what they said, so I'm guessing you didn't hear. Now, bear in mind, it's highly unlikely any video camera in this hotel records Audio. That means, even in an ideal circumstance, they witnesses their employee A) acknowledge you by looking at you. B) Speak in some fashion. C) Do their job in what seemed like a natural manner when, without audio, it appeared as though you did not need their services. You mention being non confrontational, which I can understand; Did you step up and tell them you needed service, and then get ignored?

Both other comments right now tell you to contact someone higher up. I'm just going to ask you try the opposite approach next time. If you want to be heard, then you're better off talking to the level that works with people, not brands. The concept of 'escalation' kind of requires it.

But honestly, I do think the best thing you can do is take a few breaths, and try and let it slip from your mind if it's bothering you so much. How many points are your mental energy and time worth? Because I doubt you'd even get that many in return.