Va. Code § 46.2-800.3
The governing body of any locality may by ordinance prohibit any person from operating a motor vehicle or watercraft on a flooded highway, street, alley, or parking lot, regardless of whether such highway, street, alley, or parking lot is publicly or privately owned in such a manner as to increase the level of floodwaters to a level that causes or could reasonably be expected to cause damage to any real or personal property.
Such ordinance shall not apply to any law-enforcement officer, firefighter, or emergency medical services personnel engaged in the performance of his duties nor to the operator of any vehicle owned or controlled by the Department of Transportation or a public utility company as defined in § 56-265.1. Any locality adopting such an ordinance shall provide for adequate notice, including signs that, at a minimum, warn operators of motor vehicles and watercraft of the prohibition and penalties.
A violation of such ordinance shall constitute a Class 4 misdemeanor.
Va. Code § 46.2-800.3