Costco is hit-or-miss. They may have or may not. Regular shoppers know that if you haven't seen it before and you want it, you better get it!
I haven't seen them there yet. But don't know if they even sell them there.
I've never seen them there, but that doesn't mean that they won't get them. They constantly rotate stock, maybe try calling corporate? They would have a more definite answer.
Thanks! Your answer is awaiting moderation.