It sure feels like he is lol! I guess the only thing to do is be more careful in the future.
Yeah, it's true that they'd be able to move on in the wild. While some snakes are fine with doing their business in their hides I sometimes do wonder if they have any concept of cleanliness for their living space. There's a vid of an African egg eating snake in this video and I could swear that this snake is making the conscious decision to spit the eggshell out onto the table instead of in her own bin! https://youtu.be/m3PQtYGNqjs Then again, she could just be stretching out her neck or trying to get away from the camera. It's impossible to know what they're thinking!