I've just been gathering my thoughts.
I think Cody's high-jacking of a Space Shuttle represents the fact that he is like a little kid with 110% interest when it comes to his passion. He looks at the Space Shuttle with great interest and says "I'm going to fly that thing!"
I think he's reached that nirvana where your living is doing exactly what you love.
Then again, this whole thing is your dream, Bruce, so I can't say too much, but it is classic.
I think that the Shuttle, carrying Cody, crashing on Lusk's land may represent the fact that we're lucky to have him and that we can't let him get away!