So as the Pats mount a comeback, Brady throws a hissy-fit over a TO call, spikes the football during a dead-ball situation, yells at the ref, shows him up by staring him down, and no flag. Next play after the refs get flagged for "Offending the Brady"... the Pats pick up a first and goal on a fairly B.S. pass interference call.
I remember once upon a time Derrick Mason got a 15 yard PF for catching a pass for a first down, then tossing it on the ground spinning, and walking back to the huddle.
Almost any other QB in the league spikes the ball in anger after a TO call, yells at the ref and tries to show him up during a dead-ball situation... and that's a 15 yard penalty. No question about it.