Scootamon

Hi guys, I've just bought a new home with an ADT alarm system, I don't think the alarm is active, I don't have the code and the alarm doesn't do very much other than some blinking lights on a box in the study, I have had to switch the main power off a couple of times and the alarm doesn't do anything, so I'm assuming the alarm isn't active in any capacity? There looks to be a panic button in the master bedroom which I just want to pull off the wall but am worried what will happen, I don't want the alarm to go off because I don't have the code. Any chance this will happen? Thanks, Andy