You'll never guess what happened to some friends of mine. They were given a ticket for not shoveling their lawn. Yes, their lawn. Not the sidewalk, but the lawn.
Someone in their town pulled a 50 year old law out of the books to punish people for the town not having sidewalks. Maybe this is the Town's way of paying for those missing sidewalks. I don't know, the whole thing sounds ridiculous to me.
Personally, if it is grass it is a lawn and personal/private property and no one should be walking on it. Period. And no one should be punished for not shoveling an area that is not meant to be shoveled.