WTF, ladder 132 fireman?

So my CO detector goes off at 8am this morning, the building hallway smells like burning oil so I call 911 and bang on everyone's door to wake them up. The fire department comes out and turns off the oil burner, turns out the jerk who worked on it a few days ago fucked something up. So the super fixes it, we have to air out our apartments, firemen check the CO levels in my apartment and all is good.

Well, I go to walk the dogs this afternoon and I hear a CO detector going off somewhere in the building. Hallway smells again, can't find the super (his wife didn't know where he is) so I call 911 again. They show up, super is in the freaking basement! Boiler is fine, the CO detector that was going off was probably the one in the daycare on the 1st floor that went off this morning and hasn't been shut off. 1 fireman is giving me attitude, like he's pissed he had to come back out here again, he really was acting like kind of an asshole. I tell him what happened, including the fact that only MY CO detector went off this morning so no one in the building would have known if I didn't hear it.

The fireman rolls his eyes at me and tells me to go upstairs so he can check my apartment. All the while acting like I'm some crazy paranoid lunatic for calling them again. Tells me he had a "long day" and doesn't like having to walk up all my stairs AGAIN. I tell him I haven't had such a great day myself, what with everyone in the building possibly dying of carbon monoxide poisoning. Seriously, I just happened to be awake and near the kitchen when it went off. If I had been asleep, in the bedroom (on the other end of the apartment) with the fan on for white noise? I don't know if I would have heard it. I'm on the top floor, no one else's CO detector had gone off so the people below me would have been screwed too.

This is the 2nd bad experience I've had with the FDNY. The 1st was when there was a fire in my old building that gutted the apartment below me. My ex and I had to grab the dogs and cats at 3am and run to the roof with wet towels covering our noses and mouths. Interestingly enough, the firemen didn't give a rat's ass about us or the couple with a kid on the roof with us. They didn't let us know when it was safe to go back downstairs or ask any of us if we were okay. They were more concerned about the pretty young woman who had to run out without any shoes, poor baby!

I've always loved firemen, I sincerely appreciate the extremely hard and dangerous job that they do. I felt bad that they had to come out again when there wasn't anything wrong and apologized for it. But considering what happened this morning I was understandably nervous and no one heard the daycare's CO detector going off this morning. I'm also not someone who calls 911 for every little thing, it has to be life threatening for me to even consider it. Am I overreacting to this fireman's attitude?