I was just referring to the glucose test, which would be inaccurate unless fasted. Depending on what you ate, and how long it had been since you ate, it could make the glucose test look better or worse. For example, if you ate enough carbs to spike your insulin pretty well, you would first seen higher numbers (worse) but then a little later see lower numbers (better).
I have no idea how fasting effects A1C, however, as long as you were clear with your doctor about not being fasted, I'm sure there isn't an issue.