(2)    In any court action brought by the department for violations of this subchapter, the department may recover all costs of testing and investigation, in addition to costs otherwise recoverable, if it prevails in the action.

   (3)   Nothing in this subchapter prohibits an aggrieved customer from bringing a civil action against a dealer or salesperson. If judgment is rendered for the customer based on an act or omission by the dealer or salesperson, which constituted a violation of this subchapter, the plaintiff shall recover actual and proper attorney fees in addition to costs otherwise recoverable.