I've been in the same position myself thinking I had been "silent checked" and then waiting for the Ministry man to turn up.
The worst one was when I thought I had been checked at Lichfield (before the by-pass was built) one Saturday evening way over my time and about two bob in my pocket.I had booked off at Swansea but was determined to get home.There weren't many wagons about late on Saturdays and I must have stuck out like a sore thumb
. I thought to myself "I'll get time for this" and was wittled to death for at least three weeks but never heard owt.
I must admit I've been very lucky not to get caught as I knew plenty who had.