A tax levied pursuant to this article shall be exclusively administered and collected by the commissioner for the use and benefit of the county imposing the tax. Such administration and collection shall be accomplished in the same manner and subject to the same applicable provisions, procedures, and penalties provided in Article 1 of this chapter; provided, however, that all moneys collected from each taxpayer by the commissioner shall be applied first to such taxpayer's liability for taxes owed the state; and provided, further, that the commissioner may rely upon a representation by or in behalf of the county or the Secretary of State that such a tax has been validly imposed, and the commissioner and the commissioner's agents shall not be liable to any person for collecting any such tax which was not validly imposed. Dealers shall be allowed a percentage of the amount of the tax due and accounted for and shall be reimbursed in the form of a deduction in submitting, reporting, and paying the amount due if such amount is not delinquent at the time of payment. The deduction shall be at the rate and subject to the requirements specified under subsections (b) through (f) of Code Section 48-8-50.