Hi,My car has this SOS/telephone button located on above the rear-view mirror and the reading lamp. My dealer told me that if say the car got hijacked, I can press the button and the police will soon come wherever I am. He told me I don't have to register the car with AB or whatever or even need to insert a SIM card anywhere since it's already connected to the police station and he has tried it before.I'm just a bit skeptical about it... anybody know how does it really work?TIA.