say a coach is showing minimal dissent due to his players being abused. Then the ref comes over and tells him “this is your final warning” and the coach asks “what was my first warning?” and the ref shows a yellow card. Then the coach asks him why he was carded for asking a question and then the ref shows the red card to the coach and he is ejected. Is the referee just in 1. showing a card to a coach and 2. passing out cards for such minor offenses

USSF answer (October 7, 2008):
Unless the rules of your competition require it, there is no reason or legal basis whatsoever to show a card of any color to a coach or other person affiliated with a team who is not a player, a substitute, or a substituted player.

Law 5 tells us that the referee:

– takes disciplinary action against players guilty of cautionable and sending-off offenses. He is not obliged to take this action immediately but must do so when the ball next goes out of play
– takes action against team officials who fail to conduct themselves in a responsible manner and may, at his discretion, expel them from the field of play and its immediate surrounds

NOTE: We cannot endorse the referee’s method of dealing with the coach. Coaches, no matter how pushy and obnoxious they may be, are entitled to the same courteous and considerate treatment as the referee would give to any other person.