It depends a lot of times on the relationship that you have with the coach involved. If he is being levelheaded and will talk to you (and listen), there is nothing wrong with getting close enough to him to let him know you missed a particular call. This is not necessarily apoligizing for the call, but just letting him be aware that you realize that the call was incorrect. He knows you can't take the call back, but should appreciate your honesty in admitting a mistake. Than being said, don't do it more than once a game.