I am Dolphin fan. To young to remember that game. Actually I wasn’t even born. I do know Shula pulled shenanigans such as this. Specifically, in the 1982 AFC Championship Game against the Jets, where he purposefully left the field uncovered the night before the game and let the Orange Bowl’s field get soaked and muddy.
Here's a video of a TV screen (IOW poor quality) of the snowy field being brushed incident.
http://www.youtube.com/watch?v=BVP8JyEXujM