Adt Protectron - Out of Business

Our family’s alarm system started with Protectron since 2014, then it changed to ADT. As my business uses ADT and did not have problems, I felt it’s okay about the change.
In the past we had accidentally hit the wrong button but cancelled it with code on the keypad without any problem (the patch was close to the door). Protectron did call to verify, sometimes a couple times if we missed the first call.
Since Protectron passed to ADT, we had a couple times hit the wrong button to set off the alarm then cancelled it by put in the code right away then nothing happened, and never received any calls from ADT. We were actually thinking of calling ADT to find out if we were still in service or not, as our 3 years contract was up a year ago (we do notice the payment was taken each month).
Today I accidentally hit the fire alarm button and cancelled it right away within 3 second. As we did not receive a call before, I did not expect any call and did not check my phone. 15 minutes later, we had a group of firefighters at the door because of the alarm! After sending them off, I found a missed call on my cell and a voice message telling me she was calling about the fire alarm and asked me to call IF I HAVE ANY QUESTION. I do not have any question, I cancelled the alarm right away as what I did in the past.
I called customer service and was told it was the ADT’s procedure, and she ‘did not see why we don’t call the fire department’. I asked then what’s the point of key in the code to cancel the alarm right away? She answered: “That’s our safety procedure.” I know there’s no point to argue with her so I asked for cancelling the service. My call was transferred to another lady who told me right away our service will be cancelled in 30 days. My husband was beside me and he asked why in the past we did not receive any phone calls when similar things happened. The customer service representative just said our last contract day is April 21st and then HANG UP. It’s our first time we got hang up when calling customer service.
We are now expecting a false alarm fine from the city, but feel it's good to leave ADT.

We are now expecting a false alarm fine from the city, but feel it's good to leave ADT.