Yeah, I can try talking to the manager. Hopefully the manager isn't a scam artist who will defend their own sleazy bike mechanics.

Here's the chain gunk (and FYI, the chain should look shiny like stainless steel, not dirty like this):


and no, those aren't sparkles on my bike frame. That's the paint coming off. I'm not sure if it was from me riding in the mountains on dirt (i.e., rocks and dirt chipping the paint job), or if it was from them pressure washing it. I never checked before I brought the bike in, but I do recall there being slight dirt/mud on it when I brought it in.