How much further are you looking to go? I get out in to the boonies regularly enough, and I can't say that I wouldn't be able to find a gas station or convenience store someplace along a route of any significant distance (for anything under ~62 miles, I don't bother stopping). On longer rides, I'll just keep an eye out when I start getting low, but I know that I can always noodle for 5-10 miles if I need to get conservative with fluids.