Oh, what I was trying to say, I'm sure you have seen these at ski areas they use a lot for grooming but mostly to move man made snow around etc.( also ski mobile trails etc.)
Safety device is what I am trying to figure out, too much snow didn't engage what I assume parking brake, frozen but still maybe getting an indicator on dash it was applied on? Some other sites said he loves snow equipment and has a lot of pieces of removal equipment, but yes, what I would give for that snow!