that is so destinqtive on the back of a trailer,,,the more press the better..ANPR is on most major routes,,but probably wont pick up the towing car reg,,it would read the escorts reg number id have thought,,it could show the general direction the car went in,,assuming,,(never assume) they didnt cover it or tranfer it to another vehicle...there are cameras all over the major routes ,id suggest theres a reasonable chance of getting an image of the towing car here,,if someone is prepared to look hard enough.
Im Notts border,,its just up the road from me.