I don’t know that answer but it might be possible
Contact guest services about current policy they have in place if a Floridian can buy that same ap for immediate family member
I live in Georgia
Did receive an email last year I could use my ap for booking a fl resident hotel rate
Don’t know if that was a one time deal or special offer
I took them up on it and booked thru uo by phone
I find I could get deals like above if I would do my booking with a live person
Call and ask if adult resident offspring is allowed to buy discounted park
tickets ( resident rate)
The worse thing guest services could say no
But maybe they will say yes
There are a few things that we are not sure of until you call and find out present policy
Hope you score and can have the adult resident child be able to buy for you at the resident rate