True. However the OP wouldn't be facing a Byelaw 18 prosecution since they had a ticket entitling them to travel when they boarded the train (18.1) and presented it on demand for inspection (18.2).
So any prosecution would likely be for RoRA 5.3 (b):There's no dispute that the OP traveled beyond the distance they were entitled to travel nor did they pay any additional fare. So the question the magistrate would seeking to answer was if it was a willful and deliberate act.
The OP claims that they were asleep - if there is evidence to support that then they need not fear a conviction.
If they can't prove that they were asleep then their intent will have to be inferred from their actions/words - what exactly did they do on arriving at Handforth, and what did they say to the RPI. That's all the magistrate will be concerned with, the ticket examiner's handbook won't be of much help. (
@falcon)