Congrats on the shed. You can also find a "present" inside a shed ball...in other words...a big stinky poop LOL. Mine do that all the time. Just give the snake a quick once over and make sure everything came off clean as far as eyecaps, tip of tail, etc.

Glad to hear you are checking on any possibility of an RI. Always best to play it safe if you suspect a snake might be ill.