Wow. I can't believe that the car made it past week 2 doing that. One would think that all the rubber in the fuel system would be long gone unless the dude took the time to replace all of it with something that can handle the corrosive nature of Ethanol. I have read of a guy with a 90's vintage Cavalier that he retrofitted so that he could use the cheaper E85. It is doable.
It is possible that the owner made the necessary fuel system mods; a '90s Accord would be easy enough to figure out. I'm not sure about the engine control computer, though - maybe there's a tuner out there that can reprogram the injector pulses to approximate E85 settings.
To look at the car, though, you wouldn't think the guy was putting any money into it.