I think he definitely said "one" and his wife stepped in to correct him to "three."
Since he showed no sign of surprise or annoyance or puzzlement at being so corrected, my guess is that he wanted to say three but was misspeaking and he did not disagree with his wife's correction.
There was no instant of "oh right, someone told me to say three" or "why the heck are you saying that?"
It looked to me like he definitely agreed with her stepping in with the three.
Thank you! I wasn't sure between accent differences and just perceptions. That's a good point, I didn't see any kind of pause either.
I also noticed he said "we" a lot. It suggests to me that he often says "we" about himself and his wife (which I think is very sweet BTW). I think it's unlikely his wife saw the girls that particular day if she was out delivering papers, but I don't doubt at all that he/she/"we" saw the girls often. He also said "we" about himself and the town a lot so I think he's just really connected to his family and community. Don't mean to suggest anything w/that, I'm just trying to hard to help pin down the timeline.