Except for parking violations, when the same conduct is proscribed under this title and a local ordinance, the charge shall be brought under this title and not under the local ordinance. Prosecutions brought under any local ordinance, rule or regulation, which are based on a violation for which there is a specific penalty provided in this title, except for parking violations, shall be deemed as having been brought under this title and the assessment and disposition of the fines and forfeitures shall be so governed. Local ordinances relating to parking shall prescribe fines for violations and may authorize the payment of penalties in lieu of fines and costs under prescribed conditions.