I have a question for those of you that have had snakes escape.... What is your best estimate of the % chance that the snake will be found?!?!

This past Thursday night my 13yr old son had his prized female pastel (Blues) escape from her enclosure. This is a snake that he has been raising and is/was hoping to breed this upcoming fall. We have been tearing apart the house and have set up various "hot spots" in several rooms. One thing that is against us right now is that she actually ate the night before the escape, so she's not actively seeking food right now.

While I want my son to continue to have hope of finding her, I also want him to understand what the odds are that we are dealing with.

As much info as people would like to provide would be greatly appreciated as we are truly singing the "blues" .