Love those California legislators. It wasn't until after I took this picture that I read the sign posted on the machine. Did you know that air and water is free to customers by law? Well, at least it is in California. All those coin operated, self-serve machines at gas stations and people are dropping quarters in like it's just money. Next time I go to fill my tires, I think I just might look into this free by state law issue and save my quarters for the parking meters.