(a) Upon the garnishment of salaries, wages, or other compensation due from the employer garnishee, the employer garnishee shall hold, to the extent of the amount due upon the judgment and costs, subject to the order of the court, any nonexempt wages due or which subsequently become due. The judgment or balance due thereon is a lien on salaries, wages, or other compensation due at the time of the service of the execution, or as set out in subsection (b) of this section.
(b) The lien provided for in subsection (a) of this section shall continue as to subsequent earnings until the total amount due upon the judgment and costs is paid or satisfied. The lien on subsequent earnings shall terminate sooner if the employment relationship is terminated or if the underlying judgment is vacated or modified.