The plate umpire has the authority to make decisions on any situations not specifically covered in the rules. (15.3.4)

The umpire shall not impose an effect on a team for any infractions of a rule when imposing the effect would be an advantage to the offending team. (15.2.14)

The plate umpire is empowered to rectify any situations in which a delayed call or a reversal of a call places a player in undue jeopardy. (15.2.15)