Why didn't you confess to your lack of knowledge up front. 12310bch pretty much said it all.No, I would tell him the truth: "I'm sorry, I really do NOT know the answer to that question; you should consult an up-to-date rule book if you want an accurate answer."
And by the way, "snotty" is a poor choice of words. It conjures up disgusting images in one's mind (and you know the images I'm talking about). So to call another person "snotty" might not be any better than calling them an idiot.
Roger