I took the plunge and signed up for my first MS at a gas station, Chevron. It is the mystery shop, not audit. I quickly looked over the lengthy directions last night and the only area that makes me feel anxious is the water/air hose question. First of all, I don't remember ever seeing a water hose at a gas station. Do most Chevrons have them? Do most require $ to use them? How can you discretely check these? Any tips are appreciated.