"you'd wake up on the ground with nothing but your briefs left to your name."

Is this the right time to shift to a "anyone carry guns while on tour" thread?

Seriously though, you can just ask the cops or the firemen if there are any. They can fill you in on any parks or spots you can camp. My basic rule is if it is the kind of place that would find your trip cute or not fear you have 500 other people behind you, then ask away. People are helpful if they don't feel you are taking advantage, or that you are the vanguard of a property values devaluing trend.