I just read another post that talked about how their angel eyes didn't turn on when the battery was low. My car sat for about three days when the rear end sagged, I drove it yesterday and this morning when I unlocked the car the angel eyes worked, also had no sag today.

I am guessing it was a battery drain issue, it still makes me question why if the battery was low that the airbags would deflate. Probably still need to get it checked out.