2 bikes per train?

One of my regular trips to Hull with my bike today. I'd understood that Northern Rail were supposed to be getting stricter with their two bikes per train 'rule'. This didn't seem to be the case on the 7.41am from Sheffield today where four bikes got on. Two in the (completely inadequate) little 'box' where cycles are supposed to go, one in the vestibule next to it and another one somewhere up the other end of the train. No complaints, no problems.