you seem to know what you are doing... just set everything up with proper temps (90 high 80 low and place temp probe on the heat source not in the tank) and humidity and leave the snake alone for a week or so.... try feeding and just let your snake settle in and get comfortable....
some snakes like hides.... some don't..... in my experience only hatchlings and juveniles like hides, my adults tend to just lay around.....
some balls like to pretend they are green tree pythons..... and some don't lol
and post office workers are lazy.... nothing we can do to help you there