No I didn't collect as I don't currently hold a permit and was not there on DOC business. But I will make a point of getting some next time I go back (hopefully not too far in the distant future - although I might need a little rest first, the access is a 3.5km walk ascending about 1,100m!). I saw these about 5 weeks ago when I went through last but didn't really think too carefully about it. I'll definitely make an effort to be prepared to collect some next time I can.