I returned to the car in a supermarket car park, pressed the unlock button, doors unlocked and indicators flashed twice. Opened the door and a few seconds later the alarm starts going off. I closed the doors and locked the car, minute or so later the alarm stopped. Unlocked, opened doors, few seconds, alarm going again, couldnt start the car. Locked again, waited for the alarm to stop, unlocked the doors and this time got the keys into the ignition and engine started. Pulled away and alarm started going while driving. It went off a minute later and stayed off. This morning I went to the car and everything appears to be working fine again. Should I be worried or did the system just get temporarily confused?