Good evening! I can help you out with your legal question tonight.

The following offenses are disqualifying offenses:

• Driving a commercial motor vehicle while under the influence of alcohol. This shall
  include:
  

• Driving a commercial motor vehicle while the person's alcohol concentration is 0.04% or
  more;
  

• Driving under the influence of alcohol, as prescribed by State law; or
  

• Refusal to undergo such testing as is required by any State or jurisdiction in the
  enforcement of §391.15(c)(2)(i)(A) or (B), or §392.5(a)(2).
  

• Driving a commercial motor vehicle under the influence of a 21 CFR 1308.11 Schedule I
  identified controlled substance, an amphetamine, a narcotic drug, a formulation of an
  amphetamine or a derivative of a narcotic drug;
  

• Transportation, possession, or unlawful use of a 21 CFR 1308.11 Schedule I identified
  controlled substance, amphetamines, narcotic drugs, formulations of an amphetamine, or
  derivatives of narcotic drugs while the driver is on duty, as the term on-duty time is defined
  in §395.2;
  

• Leaving the scene of an Accident while operating a commercial motor vehicle; or
  

• A felony involving the use of a commercial motor vehicle.

So to answer your first question, if you are not charged with a felony (car theft, etc.) then you are not likely to lose your cdl.

Part two, you will need to pay the fine to get the impounded car back into his possession. If you pay the fees, then you can take the car back, unless it was involved in some drug investigation etc.