Keeping Snow Off Vehicles

Does anyone know of inexpensive carports that actually stand up to the Central New York winters? Any that I have seen after a New York winter are usually missing either pieces of their covering or sections of the support structure. I am not talking about a small pole barn or garage but rather an inexpensive area to keep snow off an outside vehicle. Our garage is full and no one wants to clean off a foot of snow from a vehicle at 6am! Does such a structure exist?