Ugh. I didn't notice the roads, but it wouldn't have bothered me if I did. I like accuracy and attention to detail in documentaries, but not in shows made solely for entertainment. I guess scifi-fantasy people are little more picky about this sort of thing than I am. I am glad they worked toward a resolution for the father/son "I hate you"/"you will respect me" crap. If this ends up being a side plot throughout the season, I will stop watching it.

edit: and in response to the comment above about the father being too cliche, but not the son: to an older person the son was annoyingly cliche. MUCH moreso than the father. It's all a matter of perspective, I suppose.