Well, by "not up to code" they mean dirty and needing a good pressure cleaning, then yes. I don't think they would need to be torn down. They pretty much only finished the steel and conrete framing and flooring. Nothing that could get heavily damaged by exposure to weather was installed. Yes a lot of pressure washing, perhaps some sand-blasting, but not a tear-down. I also believe the main building (food court, front desk) was at least sealed up with doors and windows, unlike the two guest room buildings.
Although the "abandoned" buildings have been sitting there vacant longer, remember that contruction was stopped on the currently-open half of Pop for about 18 months, and those buildings sat there only partially completed, too.
Do a search on YouTube. Someone snuck over there and took some video footage of what's there, even went inside one of the rooms.
Edit: Here's a link to that video. Kinda creepy, actually:
http://www.youtube.com/watch?v=bSc1fG0ETeY
-Rob