These parents are idiots. Reading through everything since it first came out, it's quite clear they felt that the motion sensor should of triggered. I know all the alarm systems I've had, the motion sensors are NEVER active when I'm home in stay or instant mode. Only the window an door contacts.
Otherwise, the motion sensor would trigger the alarm everytime you moved.
When I had my alarm system from Comcast installed, they took over the ADT sensors and ASKED me if I wanted sensors installed elsewhere as well. ADT would not do my garage (detached),which had been broken into twice. Comcast put a door sensor out there, as well as glass breakage for the basement and two window sensors.
It's not the installers responsibility to make sure your home is secure, it's the homeowners. And this is one the of the biggest things that pisses me off about society today, no one wants to take responsibility for their own selves. IT's everyone elses job.