Wait, how the fuck would a test ride work?
>Go to LBS out of area becasue they have bike you want
>End up getting lost on test ride since you don't have your GPS
Not to mention, do you bring your own pedals, saddle and what ever else?
As one user mentioned the fit won't be dialed in either it makes more sense to purchase the bike with X day return policy so you can get everything set right then ride where you're familiar with.
It's like buying a car but you can only test drive it in the parking lot and can't go over 10mph.