I lost my Pied female (back when they cost around $3k). Actually, my wife lost it, during a cold February. She took several snakes to my son's school and when I met her at the school, the bag that was supposed to contain the Pied was empty. We were not sure where she lost it: house, car or school. I tore her Cooper Mini apart looking for it. I set a mouse in a cage in her car in the garage every night - no results. I was positive it was gone for good.
She was driving the car a month later and cranked up the radio. The vibration must have disturbed the snake and it dropped down on her feet. That female Pied is due to lay eggs in about three weeks.