CR has 2 laundry rooms. 1 in each wing. I don't know abt AKL.
I find that no matter where you stay, people tend to do laundry Wed - Sat. (near the end of their trip). So, I'd try and do a load early in the week.
I always take a roll of quarters with me. It's plenty for 1 load. The prices seem comparable to most laundrymats.