Some people are just incredibly miserable and like to take everything out on the nearest person. Anything they can find to complain about, they jump on it. Her husband was probably embarrassed by her ignorant behavior so he tried to compensate for her rudeness by being nice. People like that, in my opinion, don't deserve any response from me at all. Until you check with your landlord, don't worry about it. She just sounds like one of those people that acts as if she's "in charge" and "in control" of everyone around her. I don't have a situation like that myself but I wish you good luck.