so who reports to who to acknowledge incident?
UPS is required to maintain records of all DOT hours of any employee that drives on road. Those records actually are the employee's records because the employee is responsible to adhere to federal regulations and can be subject to fines plus the company can terminate their employment for breaking the law.
If management fails to record DOT on road hours to hide doing hourly work they my be fired but if it's reported to the DOT by hourly (using the DOT Enforcement contact info) the company can be fined.
I cannot see the company reporting themselves to the Feds but hourly has reported them before to make a point.