2000 Mercedes Benz S430 Electrical problem

When we first started the car in the driveway the hazard lights were flashing and the button wasn't even pushed. The hazard lights would periodically turn on, on their own, while we were driving. When we got to the parking lot and attempted to lock the car we could not. We tried to manually push the locks down but they would pop back up. We tried using the button on the dash to lock the doors but when pushed, not only did it not lock/unlock the doors, it would cause the hazard lights to come on! We attempted to remove the casing and use the physical key to lock the car but that would not work either. After multiple attempts the bottom key finally worked. Again on the drive home the car hazard lights would come on periodically. I attempted to open my window and it started moving up and down on it's own and then required several attempts to get it to close again. When we arrived home it again wouldn't lock but we could hear the mechanism in the trunk trying to lock. We popped the trunk and then closed it again and then (possibly a coincidence) we were able to lock the car with the button on the key. What's happening?