One of two things. There might be a 'global windows opening' function on the remote that you might have accidentally sat on. Check the manual. If there is, then there is usually a means of disabling this function. Alternatively water might have seeped into the windows and locking ECU inside the driver's door, triggering the 'global windows opening', or some scallywag might have used a proximity remote signal booster to fool the car's system that you were close to the door so they could get in and mess around with the car.