It shall be unlawful for any person to:
1. Operate any vehicle within a park except upon designated roadways and parking areas;
2. Operate vehicle in a park at a speed in excess of posted speed limits;
3. Park or leave a vehicle standing within a park except at a designated parking area;
4. Operate a vehicle which emits excessive or unusual noise, noxious fumes, dense smoke, or other polluting matter;
5. Operate a vehicle in a reckless or careless manner in the park; or
6. Wash, polish, grease, change oil, or repair any vehicle in a park, except that emergency repairs may be made.