If you weren't written up on the scene for the MIP chances are you won't be. You could but I suspect the officer didn't note or let you off. Of course, they may show up later and serve you with a citation for the MIP or some traffic violations.
The state is in NO WAY responsible for your bad driving. You need to anticipate road conditions and moderate your speed. The posted limit is only the prima facie unsafe speed in ideal conditions. The state is not going to post signs telling you it's cold in Vermont and when it is cold there may be ice on the road. By the way, secure your cargo next time so it doesn't become a hazard in a crash.

