@ Ferd.
SHE made the claim, so SHE should ask her posek. Noone else made a ridicules claim here besides her by demanding – as if its halacha limoshe misinai – that we all must shovel snow on shabbos!
First of all, I think it’s a he. Second of all, the point I’m making is that even if his posek says mutar to shovel, if mine doesn’t, I’m not shoveling.
And BTW, you made a great point about when the snow fell.