No tank vehicle transporting flammable liquids in bulk of Class I or Class II shall be left unattended on any street, alley, driveway, or parkway of the city; provided, this shall not be construed to prevent a driver from momentary absence from his or her vehicle in connection with the delivery of his or her load, except during the time of actual discharge of liquid, at which time some responsible person must at all times be present at such vehicle; and, providing further, that the Chief of the Fire Department may, upon request, grant permission for the parking or storage of such vehicles in areas or places designated by him or her and for such periods of time as he or she may set.
(Prior Code, § 7-5-3) (Ord. 465, passed 3-11-1980) Penalty, see § 10.99