AITA for calling CPS on my neighbors?

I live in an apartment with my fiance. About 5 months ago we got new neighbors. From the beginning they were terrible neighbors. They left trash in the hallway, played loud music past 1am, and argued constantly. Most of that I was willing to ignore bc we live in apartments. Its unfortunately to be expected aside from the late night music. The walls are fairly soundproof so most of the time the noise is not the worst thing in the world. The landlords have talked to them and they had became more reasonable. However, they have two small children maybe around 5 and 6 if I had to guess and their children scream. All. Day. They scream and cry and fight with each other and the parents do nothing to stop them. I understand they are children but it cannot be good for them to be screaming like that constantly. It always seemed weird to me that there is rarely a quiet moment.



We've asked them several times politely to get them to stop but they never put a lot of effort into silencing their kids. We've contacted the office and have called the cops on really bad nights but it still doesn't let up. Well enough was enough. My hours recently changed to mornings and while my work schedule and getting sleep is not their concern, I should be allowed to expect to have a quiet night and neighborhood. Around 3AM, 2 hours before I had to get up, their kids started yelling. I could here them running around and banging spoons or something on pots and pans, which is almost a daily occurrence. The mother screamed at them to "shut the fuck up!" But they didn't stop. So I called CPS and told them I suspected they were being mistreated, which honestly was not a lie because it was concerning the amount of screaming coming from that house.

I suspect they may have had the kids taken as for the past week there have been no screams from the kids. I told my fiance what I did and he thinks I shouldn't have done it. I asked some of our friends and my parents and they all say the same thing. I should have sucked it up and minded my own business. I didn't think I did anything wrong, but I feel that if their parents cared about them they wouldn't let them behave like that. So AITA?

Edit: I want to clarify that things have been like this from the beginning. Their children have been like this since day one it is nothing new to anybody.

Edit 2: I also want to clarify that I have only seen these children once when they moved in which in my mind has always been a red flag. I never called CPS bc I never heard them being beaten up or anything just their mother occasionally shouting at them. I don't know the home situation, but everything from the very beginning did always seem very odd. I never hear them leave the apartment when I'm home on my off days (I have rotating off days) and I don't know what kind of jobs the parents have. I don't know a lot about CPS if I'm honest but I always thought they would do something if something needed to be done.