I just booked CL for July 25-27 with APH discount, saved about 30% ($187.50+tax per night), I used the Loew's site not Universal and used promo code APH and it showed today (but not yesterday). Score!!
Yes- I get AP rates at HRH a lot! Sometimes they tend to be a little last minute though. DS was planning a weekend trip to HRH 3/29-3/31. They didn't have an AP rate kick in until a couple of weeks before. He called- they changed his rate to an AP rate.