I live in Lake County, just north of Polk County.
In the 35 years I've owned here, we have NEVER had a property appraiser step foot inside our house(s).
They assess exteriorly only.
I imagine Polk county does the same.
I would call their officeNOT FROM THE PHONE NUMBER PROVIDEDand inquire.
https://polkpa.org/default.aspx?pg=co&cookie_test=true
Good luck.