I guess Illinois isn’t completely horrible. They never ask to do interior inspections here unless you had work done on a permit, when the building inspector will come by.
The assessors drive by and take pictures. They aren’t even very competent when it comes to reviewing building permits to update property descriptions in their records for additions or other major work!
A coworkers parents place in Wisconsin had its taxes increased after an inspector came by when they weren’t home, and peered through the basement window and saw the basement was finished.