(1)    No person who owns or has direct control of a commercial motor vehicle or any vehicle operated upon a highway for the conveyance of passengers for hire shall employ as an operator of such vehicle and retain in the person’s employment any person who is addicted to the excessive use of intoxicating liquor or to the use of a controlled substance or controlled substance analog under ch. 961. In addition to being subject to fine or imprisonment as prescribed by law, such person shall forfeit $5 for each day such operator is retained in the person’s employ.

   (2)   Upon conviction of an operator of a commercial motor vehicle or any vehicle operated for the conveyance of passengers for hire, for driving or operating such vehicle while under the influence of an intoxicant, the owner or person having direct control of such vehicle shall discharge such operator from such employment. No person shall employ or retain in employment as an operator of a commercial motor vehicle or a vehicle operated upon a highway for the conveyance of passengers for hire any person who has been so convicted within the preceding 6-month period or any person during a period of disqualification under s. 343.315, unless s. 343.055 (2) applies. In addition to being subject to fine or imprisonment as prescribed by law, such person shall forfeit $5 for each day such operator is retained in the person’s employ contrary to the provisions of this subsection.