Geez! That looks bad Pyramid
I had a friend stuck in that yesterday too..
We left Crieff earlier than planned as we heard they were having to close parts of the A9 but it was fine.. The M90 was scary though.. never been on a motorway and been unable to see any of the road before. It was a complete whiteout!
However, although we had a few scary moments, your M8 experience must have been awful!
It came down so fast didn'tit?