In lieu of payment of a fine imposed pursuant to this section, the court may order that the person perform community service specified by the court. The person shall receive a credit on the fine imposed in an amount equal to $5 for each full hour spent by the person in the specified community service. The community service ordered by the court shall be required to be performed not later than one year after the fine is imposed or by an earlier date specified by the court. If by the required date the person performs an insufficient amount of community service to reduce to zero the portion of the fine required to be paid by the person, the remaining balance of the fine shall become due on that date.