It's very common for people to have dreams about becoming lucid just before the real thing starts to happen. The dream signs may have been fake, but it's definitely a good thing that you're dreaming about dream signs.

It's hard to tell from what you wrote, but you may have actually been lucid. Lucidity just means that you're aware it's a dream while you're in it. But you sound convinced it wasn't real lucidity - so it may have been like the fake dream signs - just dreaming that you knew you were dreaming. If it wasn't accompanied by a burst of excitement and the knowledge that you can now to some extent control your own actions then it wasn't really lucidity.