Moreno fumbled the ball and there was a dog pile. In the chaos, players and coaches off the sidelines, yelling at officials, physically touching them (one Bronco pulled a ref from the pile). Only 1 player was penalized after the scuffle. It wasn't even clear whether the refs got the call right as to who recovered it.
A couple other times, refs seemed like they let the crowd/coaches dictate whether flags were thrown and enforced or picked up (without an explanation).
A defensive holding call resulted in a random 11-yard difference in the spot.
The first quarter itself lasted for over an hour with all the indecision from the refs.