Hey, don't lose hope, it probably didn't go far at all and is still taking its sweet time hiding. This past winter when I was on vacation and my dad accidently left both tubs open (...he thought it wouldn't matter with such chubby snakes even though I repeatedly told him to make sure he should close them tight) both of my kids escaped. Found one in about 2 weeks in the bathroom on the toilet, and then two months later the other one turned up trying to squeeze itself back into the tub (really thirsty.)

They're smarter than they look.

Sometimes the more frustrated you are, the less you're able to keep a weather eye out. So take a deep breath, and know that sooner or later, if you've done everything you could possibly do, whatever happens will happen.

Good luck!