When the person responsible for the standing or parking of any vehicle, which is found standing or parked in violation of any provision of law, this Code or other ordinance of the Council, is unknown to the police officer or other person seeking to prosecute for such violation, the person in whose name the state license plate upon such vehicle was issued shall be presumed to be the person responsible for such violation, but this presumption shall be subject to rebuttal by competent evidence.
('73 Code, § 15-36)