Then why did he bring his son? The child wasn't old enough to drive, so it's not like they would be taking turns to make the trip go faster. The trip took far longer than it would just to drive straight out there and back to pick up a vehicle, so obviously they either had some trouble (which I assume would have been mentioned) or it was meant to be leisurely for JV and his son.
Personally I would love it if my boss sent me on an all expenses paid trip anywhere, and if they let me bring a guest, also all expenses paid, that would be a really nice bonus, in my opinion.