i had a portentially very embarassing moment when i got in my "new" 93 300e just now and tried to start it. somehow the alarm wasn't disarmed and started blasting like crazy. i stepped out and calmly stuck the key in the door lock and unlocked the already unlocked door (this was the only disarm option that i knew). whew! now how could that have happened? has this happened to anyone before and do you know what the problem could be?