re: Poker & Poker rules, Sidepots and deciding hands.
SUggest you keep your wits about you, and point out the guys mistake. If your league has rules, this incident should be covered. Or there should be reference to what rules would apply. Robert's Rule's being the standard. He has a boss, somewhere, find that boss, discuss the situation, ask that the person who made that rule be made aware of the bad decision.
Flipping out will solve nothing, except possibly where you will spend the night.