That's great. Looks like a cool trip too.
And you drove right by me and didn't even stop?? (from your map looks like you went through Detroit tunnel or bridge--that takes you within about 5 miles of us !--even if you took 94 all the way up to Port Huron you still drove by our house LOL).
Also bad news for you: I get 9 and change mpg all the time in our Axis. It seems to be stuck there no matter what we do: pull a toad, don't pull a toad, go 75 mph, go 65 mph...its just 9 and change. Thus with your "a little below 10mpg" could just be due to the trans (I have an older unit with the older trans). Although your's is a tad bit longer and, likely, a few 1k lbs heavier...