I have 2004 Coupe w/45k. Three different times my theft alert began chirping while parked in garage or restaurant parking lot. Could not stop it with the key fob. Problem temporarily solved; 1) Sitting in drivers seat, tried opening doors/rear hatch/ hood. 2) Started and drove for 8-10 blocks while chirping (everyone looked to ck me out) and when I returned and parked in the garage and turned ignition off, it quit. 3) Got it and started the engine and after about 30 secs it stopped. WTF??