I know ball pythons and corn snakes are different. But I had my snakes in a 3 drawer rack sitting up on a counter. My one corn snake escaped from the bottom drawer within 5 seconds of my last seeing him in there. After about 5 minutes of frantic looking, he was curled up in a tiny box sitting about 10 inches from the rack. Check the immediate surroundings.

Seems like when snakes escape, their first thought is "I'M FREEE! Oh no! Where to hide!"