Clearing one’s own (governmentally acquired) property, is not an issue of bein adam lachaveiro, it is just a government required activity. to my humble opinion.
The story is told of how the Chofetz Chaim, Rabbi Yisrael Meir Kagan, was once stopping by a pharmacy, and told the pharmacist how much he envied him. The man was taken aback, and asked what there was to envy? The Chofetz Chaim explained he envied the pharmacist his many opportunities in the course of each day to sell medicines and save lives. The pharmacist responded that he did it to make a living, not out of any altruistic motive. Hearing that, the Chofetz Chaim said to him: “You have to have intention that ‘I am coming to fulfill a mitzvah (Torah commandment) of chesed (kindness) to others and saving lives.’ The profit-making side of it does not devalue the mitzvah, as long as you have the proper intention.”
I don’t think you can decide what ZD’s intentions are. Even if it’s government mandated, he can still get a mitzvah in ben adam l’chavero for clearing away the snow in front of his house if he has the right intentions.