I raced IM Chatt and the only volunteers that I saw in the changing tents were standing at the exit taking gear bags from racers and throwing them in a pile. I didn't see any of them actually assisting with changing of clothes etc. There may have been, I just didn't see any doing that when I was in the tent. And I don't blame them for not getting involved if people were urinating in there.

And I pissed in the port o potty just outside the exit of the tent.