If an unattended motor vehicle is found parked at any time on any City street and the vehicle has 3 or more unsatisfied citations against it for parking violations, and if a period of 30 days or more has elapsed since the 3^rd unsatisfied citation, the Commissioner is authorized to cause that vehicle:either by towing or otherwise, to be removed or conveyed to and impounded in any place designated by the Director of Transportation; or immobilized so as to prevent its operation. Except that no such vehicle shall be immobilized by any means other than by the use of a device or other mechanism which will cause no damage to such vehicle unless it is moved while such device or mechanism is in place. When the vehicle has been removed and impounded pursuant to the provisions of this section, it shall be subject to the impounding provisions of this subtitle and the penalties applicable thereto. An immobilized vehicle which is thereafter impounded shall not be subject to the booting fee hereinafter provided for in this subtitle. City Code, 1976/83, art. 31, §90(a), (b)(1) Ord. 69-343 Ord. 74-768 Ord. 83-864 Ord. 15-435