Yep, that's pretty much the long and short of it. Except that they weren't very slow-moving zombies.

Lucid dreaming, eh? Huh. I've been doing that a LOT lately. It happened one other time (with a different zombie dream, that I can remember), and I can remember a handful of other times when I realized I was dreaming and could control it. Sometimes I'd realize I was dreaming, and in my attempt to control it I'd wake myself up. This tends only to happen with nightmares or those weird, weird dreams that make no sense.