Schedule temperature-sensitive work and keep recorded readings and setpoints with the visit. Staff still take and verify readings as required by the facility.
Log the trailer reading and setpoint on the door itself. The last reading from the gate or yard walk shows with its age, so you know when to look twice.
The truck queue sorts by who's due first, so a frozen load with a tight window doesn't sit behind whoever called the office last.
Every reading is saved with the load, the time and who took it. When a customer asks what temp it left at, you can answer.