Section 78-114 - Night Parking states in part:

No automobile, truck or trailer shall be parked on any street or alley in the city between the hours of 2:00 a.m. and 6:00 a.m. on those days when an accumulation of snow requires that the city snowplows clear such streets and alleys.

Section 78-115 - Snow or ice emergency states in part:

…the parking or standing of a motor vehicle on a public street or highway in the city shall be prohibited during the term of such emergency. A snow or ice emergency shall be deemed to exist when snow, ice or a combination of the two exceeds the depth of two inches on city streets or highways.

Michigan Vehicle Code, Section 257.677a - states in part:

A person shall not deposit, or cause to be deposited, snow, ice or slush on any roadway or highway.