I kinda see what your talking about now.
I had a dream last night that I was talking to a friend about lucid dreaming. I told him that I had the ability to control my dreams and what not.
I know this is different than what you've experianced, but I relized after thinking about it more, that you could in fact dream that you are "saying" your lucid and not be. Obviously you can say your lucid all you like, but that doesn't make you lucid.