Who stolen it, probably stolen the package itself, because didn't know what was inside it. Or if you wrote model car on it, probably he is a collector, or know someone that collect/build model cars, and stolen it.
So the person that stolen it should be a the Capitol heights in Maryland or the next step where they track it.
I don't think he is so stupid that will enter this model in a contest... But... Who knows...
Another thing to say, is that he could be a member here so, read this post, and keep the model at home...
Good luck!!!!