Oh, I didn't have the impression there was snow on the ground at all when they were on that part of the road.
I thought they didn't hit snow until much higher up, so they came back down and *then* it started to snow. Then it snowed and rained for two days after they had gotten stuck from the snowstorm that hit them that first night (the first Saturday, 11/25).
From what I understand there are parts of the road that are covered in canopy type of coverage in addition given the height of the sun many parts of the road are not going to get the direct sun to melt all the snow on the road.
They also traveled a long way on Bear Lake Rd I am sure there are parts that probably still have some snow even now.