The poster seems to claim is is a literal DUMPING, not snow from a plow blocking a driveway or such! The latter has been litigated and it is a necessary element of plowing for the benefit of all.
The former would be a questionable action under the Takings clause of both federal and state, IMO.
Snow plowing is a governmental function, not a proprietary one, so immunity is there, but not in this case I would think.
Oh, to edit, I see it is a hired truck, subcontractor, not a city truck, so would sovereign immunity apply?? Hmm!!

