I don't know anyone that charges for an autograph who is on the bodybuilding, figure or fitness circuit or refuses to take a picture unless it is Lou Ferrigno. What they do charge, usually $5 or $10 is if you want an autographed 8x10 that they sell.
If you go up to someone, and ask for an autograph in your own book, t-shirt, etc - they oblige.
As for residuals, some of my writer friends who are not making any money now are happy they are getting residual checks from past shows. Not everyone gets it, but actors, writers, producers, directors and others do. Each contract is a little different.