So I was leaving work today and as I approached my car, saw that the hazard lights were flashing. When I unlocked the doors with my key fob, the lights stopped flashing, and all seems normal with the car.
That was my first thought too. Manual says the alarm sounds for 30 seconds and the turn signals flash for up to 5 minutes if a door, hood, or hatch was forcibly opened, if the car was started with an invalid key, of if the battery was disconnected -- none of which seems to have occurred.