[Ref in PA]

You could also ask the refs to clarify something after the game. During the game, as has already been said, you are stuck with the rule knowledge of those out on the court. Some refs would be willing to talk after the game, but not during. When I am out on the court, I have to be confident that my rules knowledge is 100% correct. If a coach has an issue with the interpretation of a rule, he has two choices - wait until after the game where one of us will be enlightened or pursue the issue which will likely cost him a T or worse. During the game all are stuck with my current rules knowledge.