LOg books

Point them at the FMCSR, part 395.

395.2 Definitions

ON Duty Time shall include:

(1) all time at a plant, terminal facility, or other property of a motor carrier or shipper or on any public property, waiting to be dispatched, unless the driver has been relieved from duty by the motor carrier.

(4) all time, other than driving time, in or upon any commercial motor vehicle, except time spent resting in a sleeper berth

(5) all time spent loading or unloading a commercial motor vehicle, supervising, or assisting in the loading or unloading, attending a commercial vehicle being loaded or unloaded, remaining in readiness to operate a commercial motor vehicle, or in giving or receiving receipts for shipments loaded or unloaded.

( 8 ) performing any other work in the capacity, employ or service of a motor carrier.

In other words, unless you can crawl back in the sleeper, it's on duty time. If they demand you log it otherwise, tell them to put it in writing.

And look for another job.

 

Yes it's on-duty however if the company allows you to run to the store (example) or do what you want while you wait then you can log it as off duty.
But yeah hence the reason for the 14 hour clock is just this example above. You could be awake 12 hours waiting and they can expect you to run your full 11 hours of driving, however the book covers you and if they fire you then do a formal complaint to the FMCSA