The Associated Press reported Griffin's headset did not work during the final, game-winning drive.
"The whole drive was a little complicated," Griffin said. "In practice every week, we always practice me calling the plays in two-minute, acting as if the headset goes out. The funny thing was the headset did go out on that drive. That's why I was having to run back and forth to the sideline.
"I had to call a couple of my own plays, and we moved the chains and got in field-goal range. It was very neat how that practice situation, that practice scenario, actually played out in the game."
Griffin threw for 323 yards, ran for 43 and a touchdown and did not turn over the ball.
Redskins fans will be the first to tell you how different life is with a franchise quarterback.Follow Kareem Copeland on Twitter @kareemcopeland.