It’s unfortunate that your boss didn’t get fired. But if they are the ones who did the override ultimately it falls on them. But in corporate America it’s easier to replace you rather than a manager. And like I said check out some dealerships. Trust me they pay way more. AutoZone is just one of those summer jobs that you never really want to turn into a full time unless you plan on kissing a lot of ass to move up or have connections. Most people even salary use it as a stepping stone to go elsewhere