Incorrect.
Article 10, section 1, paragraph 2 of the National Master Agreement:
"No employee shall be disciplined or required to make reimbursement for lost or damaged parcels unless the Employer demonstrates that the employee, without justification or mitigation, violated pertinent established rules or policies, the observance of which would have prevented the loss or damage."
In other words.... it is managements responsibility to establish some sort of procedure that will prevent the problem from occurring and if they fail to do so then they give up the right to make the driver pay for the loss.