I don't understand the not checking out excuse. The industry went "bills under the door and just leave" 20+ years ago and I haven't formally checked out since unless I needed an updated copy to expense a checkout-day breakfast charge. Who checks out anymore?

Nothing has changed to accommodate that? As in, this room is automatically scheduled to turn over today and not to make it available without a positive input from someone? Seems like a simple IT function.

Other reasons, sure.