Which is either bad writing or a giveaway that Peter wasn't the only ally Adam had while still imprisoned by the Company, since someone must have procured that passport for him. And yes, that points to Angela.

Well, we know for a fact that Peter isn't his only ally. There's also Maury, who is conveniently enough, a telepath. So Peter would not have heard them communicating and solidifying their end of the plan. Adam had to have jumped directly into his death threats against the Elders, right after getting away from Elle, so it makes sense that a lot of that was plotted out with Maury before he even escaped.