Update on the situation — after I waited a week, I think Noodle... "deflated"(?) slightly:
Here's another angle, there's still a bulge but not as bad as before:
I'm confused because I looked all over the enclosure and I don't see any poop. Wondering if he is still slowly digesting what's in there? Argh, why don't ball pythons come with instruction manuals? To soak or not to soak?