Unless it has very recently changed, the TOTWL is only open to
DVC members (and their guests staying with them) who booked their points or cash stay through Member Services.
So you would not qualify since AP discounted rooms can only be booked through CRO/DRC.
That said, the only way you can find out for sure is to take your DVC member card and your room ID to the first floor after 5 pm and see what the CMs there say. Maybe you'll be lucky or maybe the access policy has indeed changed.