Mr Issue,
You are correct, page 15 of the "Employee Policy Book.
MANAGERS ARE THE COMPANY'S REPRESENTATIVES
Managers are delegated the authority to make thier own decisions about their local operations subject to UPS Freight's policies and rules, and subject to appropraite review with others. With this authority comes the expectations that managers will be responsible for the decisions they make. By delegating broad authority to managers, UPS Freight can manage its business on a personal level and develop a spirit of teamwork.
Sounds more like a divide and conquer tactic if you ask me.
Break the rules or operating policy to take care of one employee over the other and pitting them against each other doesn't sound like a "spirit of teamwork" to me.