To add to this - the car guy might think he has something to prove by blaring his engine at 7am: "I'm going to show them all" or something.

An alternative thought is "I'm not going to do that because I don't want to upset potential friends/future relationships that will benefit me"

Likewise, it sounds like you're upset at all of these people and would like to just be left alone

An alternative thought is "Look at all of these people around me who are don't feel like they have a place in the community or that they won't have enough in the future. What can I offer to my community, and how can I get them involved?"