In reality
We all know the Goverment of the world would never bow down THAT easily to these visitors, especialy if they look humans. I think in a real life scenario they would have to go with the fear strategy showing there real faces.
Big countries of this world would try to cheat and deceive there way to there technologies, There is no chance in hell we would simply let them put there martial law in place and giving them control on our communications lol.
Anyway just speculating fo the sake of speculation lol :)