About the ending (spoilers)

There were some things that weren't clear to me, mostly about the ending and after. I'm sane enough to realize that, in movies, some things are often left to the imagination. Still, if you could tell me what you think happened in the storyteller's eyes, I'd appreciate it.

First, I swear that Phonce said early on that there were 20 packages of cocaine like the one we saw. Did I hear him wrong? If not, what happened to them?

When I looked at the restaurant's customers at its most packed, they seemed mostly dressed for the opera or something. Birders wouldn't be dressed like that, right? Did they go home to change?

After the bird expert pronounced the bird nonexistent, traffic pretty much dropped back down to zero again, right? But then, near the end, they were preparing for expected people that evening. Do you think that's because nobody ever figured out about the decoys? Or because of the PR generated by the government and boats? Both? I guess what I'm trying to figure out here is whether we're supposed to feel that the Auk now will have a permanent customer base.

Alice got called to the university for an interview, by which I assume is meant an admissions interview, meaning she still might not get accepted. Yet the feeling seemed to be that she was leaving for good. Is the idea that she'd stay in Montreal no matter what? If so, I don't get it, because she'd have no reason to stay, and the relationship was just starting to bloom. And are we supposed to think that Hurt was riding off to live in Montreal, maybe start a restaurant there? Just spend a few days there?

Yeah, I know that I'm probably thinking too much. Can't help it.