I would assume that in order for a pilot to be accused of not wearing their safety cloak, said pilot would first need to be seen by the accuser.
A bit like the ******** safety officer who drove about a k and a half to rip it up a pilot loading his aircraft who wasn't wearing the vest. Old mate listened to the safety 'lecture' for about 2 minutes before asking the safety officer how he saw him from so far away with no vest on. ******** drove off in a huff.