Biggest problem I see with that situation: If the taking a break snowmobiler had the wrong person taking video at the wrong time, it could look like he was chasing the wolves with his sled. Wolves wandering around out on the ice during the day would be plenty enough reason to stop and shoot a little cell-phone video, taken out of context, it could be REALLY problematic.
The last wolves I saw in person came trotting out across freshly harvested wheat stubble @ 10:30 in the morning. There were 2 pickups, a tractor, and a combine all running and driving around doing their thing. The wolves trotted out as if they owned the place and didn't have a care in the world. There was 4 of them. They trotted out @ under 50yds and were in the open out to ~500yds then back into the woods.