No worries , we can and do just mark them , needs appointment , weather delay , not accessible with a 48 or whatever else I've seen it be marked as on the other side of the window.
Ask https://www.truckingboards.com/bb/members/yourtm.42850/ him in a PM he will answer you with the proper code while he checking out TB on duty
I mark returns, No Mirrors, can’t safely back into dock.