OK, so lately (past month or two) I've been hearing my car randomly beep like I'm pressing the lock or unlock buttons. I'm pretty sure its been my car because the 02 horns are loud and annoying, and I havent seen anyone else leaving or entering a car when I hear it. Also, a few weeks ago my alarm went off, and the car in front of me had been there since I parked, and the car behind me was there a while.

The kicker.....when I'm at home I dont lock the doors (cars in small garage, and the horns are too loud to handle) but tonight I went to get something out of the car and the doors were locked! as we the other times I've heard it go off at work, the keys werent in my pcoket, and nothing was near the buttons.

Has anyone had problems with their alarm remotes or the car locking themselves? and how the hell do you fix it? Also, when I unlocked the car with the key, the alarm didnt go off....I thought it was supposed to? TIA