Okay, here goes...

A. Assuming I can find dry bamboo stalks, I will try and fracture one in an attempt to get a decent edge. I would try and make a fire drill using a modest piece of my cloth and some green bamboo for the bow. Tinder up and try and throw a spark if possible.

B. I will look for depressions where water collects if the terrain is solid rock, otherwise vegetation. Large mammal bones may be collectible, and if I find any, they can be chipped into suitable cutting implements. If there's bones, maybe there's some herbivore dung around that might burn.

C. First, I wouldn't be caught in public owning a Yugo, and if I had one, it would be no problem writing it off. I'd approach the Civil war fellows, tell them what predicament I am in, and some interesting history about one of my ancestors, General Sterling Price (my namesake) and ask if they might be of some assistance. I may even try to lend them a hand with their re-enactment stuff. Like offer to help clean their gear, or help cook a civil war type meal. They're the most reasonable bunch from my perspective.