I accidentally set off alarm at my son's house. I shut it off before it was supposed to go to police. The company never called my son, but 3-4 hours later a swat team(ok, 8-10 cop cars, cops in full safety bulletproof gear ) showed up.
Son hates the security service, but the contract won't let them out. Having the police show up 3 hours after a REAL emergency is useless. Obviously where they are, it's just a fortune down the drain. They could have dismembered us and cleaned up the mess by then!