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Snogo Snow Plow was created in 1932.
you go to the garage and get the blow dryer and blow the snow out
it is probably a glitch, or you have already beat the game
It is safe to pass a snow plow when it is parked or when it is moving with the plow raised so that it is not engaged.
The dealer that I work at has a snow plow on a 2000 Dodge Durango. It isn't the best vehicle as a snow plow but it works.