I agree, I definitely want to know what was in that package. We can tell that there is a big change for the MC, it’s his first day of his new job. I like the emotions fighting each other here as he debates whether to go into the office, the fear of the ‘uniforms’ verse the need, hunger, to keep his new job. I believe the incident is when they drop off the package, or it could be when he tells Vera to give him the package. Technically if he never volunteered to deliver it the story wouldn’t get started.
I think your trigger is the fact that he is an orphan and hungry. That is what I assume spurs the change to get his new job.