Breaking the crank up antenna trailer down

If I want to use the yagi for Winter Field Day I have to break it down and move it in good faith of abiding by the rules.
"Station set-up may commence no earlier than 1900 UTC (2pm EST) on
the Friday before."

I break the trailer down and attempt to move it with my ATV. It just so happens we have very icy snow on the ground and it was just a little chilly.