Generally, that yellow on your hand was pee.. yes it was solidified, but it mostly comes out like that. They also have brown poo, usually right with the yellow. I would say, if in doubt, scoop it out. It would be better to remove a little extra shavings here and there than leave poop in with your king.
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Holly

0.1 Lavender California Kingsnake (Lizzie Borden) (missing )
1.0 Florida Kingsnake possible mix (Eddie Gein)
1.0 Bearded Dragon (Charley Manson)
1.0 Orange Marmalade Cat (Oliver)
1.0 Egyptian Arabian (Bagan)

2.0 Toddlers (Justice & Trevor)