In my former congregation a brother and me used to do something similar. We would take the teritories that would be the farthest away from where we lived. Sometimes up to a two hours drive. We would then make the occasional stop on a highway restaurant and would witness to the truck drivers making a stop there. This way we counted the whole jurney. btw he was a pioneer ;-)
On the topic of time counting and pioneers. I once went with a pioneer in service and at the end we got hungry so we went into a fast food restaurant. He got his food first and went straight to the table which was the farthest away from the entrance. Also in the fast food restaurant there were almost no other customers. What did he do? He put a watchtower out on the table and was counting time! Nobody passed our table!!! NOBODY! But he still counted the one hour. I made a comment to him about that, but some pioneers are so arrogant, a normal publisher cant tell them anything.
I am still a witness, so everytime someone tells me I am not making enough hours, I tell them stories like these from pioneers and shut them off.