Gah, stupid alarm while driving

Well, happened twice today on my way to work and then again back home for lunch. The first time I was driving along and hear the little beep, but thought maybe I was jsut hearing things as I was listening to the stereo at the time. Then about 10 seconds later the hazard lights go off, horn starts beeping and I am like "WTF" as I start to panic trying to figure out what the hell just happened. I pop in the clutch, turn it off, coast, and notice that I don't have any error messages flashing. It took me a couple seconds to realize it was just the alarm. I press the unlock button on the key fob and turn it back on, released the clutch, and continue on my way to work while trying to figure out how in the hell I bumped it to set it while driving.

It just did it again on my way way home for lunch, although this time I just quickly shut it off via the key fob without shutting down the engine as I knew what it was. Gah, now to find out what the hell is causing this because embarressing to be driving along and with out warning be appearing like I am honking at people with my hazards going.