Stayed one night last week on points as a diamond. Booked a standard award room and was upgraded to a Rainbow Tower corner oceanfront diamond head room 4 days before arrival. Did OLCI the night before to reserve a room on the 29th floor. Used the $36 credit on a Starbucks Hawaii mug and reusable bag.
If you rent from the Hertz at the Hyatt Regency, they allow for after hours drop-off.