(a) In addition to other costs, the court shall order a person convicted of a misdemeanor under this subtitle to pay a fine of $3.
(b) The officer who collects a fine under this section shall:
(1) deposit in the municipal treasury a fine collected in a municipal court case; and
(2) deposit in the county treasury a fine collected in a justice court case or in a county court case, including a case appealed from a justice or municipal court.
(c) In this section, "conviction" has the meaning assigned by Section 133.101, Local Government Code.