Neighbors complained about my dog...

I have a COVID dog (got him March 2021). I work from home, so he's very used to having someone there all the time. He's cute and if I could show you a picture, you'd be like, he could stomp on my lifeless corpse and do whatever he wants, I'd never complain about him.

Alas, someone has. Specifically, my upstairs neighbors. I live in a VERY dog-friendly apartment building (we have our own private dog park), so hearing dogs is pretty much the norm. But I guess, the other night when I went out to dinner with my BF, my dog started crying. (He missed me, and LOVES my BF so much, it just amped up the separation anxiety.) After about 10 minutes (around 7:30pm), I get a call from my front desk saying the apartment above me is complaining because me dog is "wailing." Not barking, but "wailing."

I know the sound — he's done it before when he was a puppy puppy (I got one of those pet cams and watched him before it became too torturous). Anyway, I was so anxious about it, I ran home from the restaurant to check on him. I got home about 5 minutes later and as I walked up to my front door, I couldn't hear him crying. He had calmed down. So I figured, why just get him worked up again? I turned around and went to dinner. No complaints whatsoever.

So I guess the TL;DR is: My dog cried for about 10-15 minutes MAX and my neighbors complained. I've NEVER gotten this complaint before and have even asked my next door neighbors if they've heard him. (They have not.)

Advice wanted: Do I need to say something to my upstairs neighbors? I'd love to remind them that he's still a puppy (about a year old) and I never complained when they decided to build furniture at 10pm on a Tuesday night, but that's neither here nor there. I was thinking I could go a few directions...

1) Passive Aggressive: A note that says "sorry! he's a puppy, thems the brakes." with a small bottle of alcohol to numb their eardrums

2) Aggressive: No alcohol, a note that says, "give him a break" and complain about them next time they become the property brothers on a weeknight.

3) Ignore it completely

My dog is a dog! And unfortunately, when you live in a building like I do, you just have to accept that you're gonna hear dogs... often. My neighbor's dog barks almost the entire day, but the walls are thick enough that it barely bothers me. I can't help but feel like they were just being mean.