If Plaintiff asserts a claim against Dieter to recover damages for his injuries, basing his claim on Dieter's violation of the parking ordinance, will Plaintiff prevail?
No, if prevention of traffic accidents was not a purpose of the ordinance.
Yes, because Dieter was guilty of negligence per se. 
Yes, if Plaintiff would not have been injured had Dieter's car not been parked where it was. 
No, because Dieter's parked car was not an active or efficient cause of Plaintiff's injury. 