It isn't an exception. I just don't see how gasoline costing $5 at a gas station makes that station no longer serviceable. Oh well, not my problem.
It's an exception, because the rest of the gas stations in the are are charging 20-25% less. There's a few stations by the Orlando airport charging 5.50+ but it'd be patently disingenuous to argue that 5.50 was what people in Orlando were paying for gas. There are other circumstances at play. For instance, the stations in Orlando are preying on tourists returning rentals, who don't know the price of gas near the airport has been marked up (there are no signs until you get to the pump). I imagine what you posted from the DC-are has a similar explanation.
At the time of posting, the average cost of gas in DC is just over 4 dollars a gallon.
http://www.gasbuddy.com/gb_gastemperaturemap.aspx
The average price. Using any other metric in this case is really silly.
Did you have to walk 11 kilometers to work, or to get groceries?
Seriously, a 6-mile drive to work, or for groceries, is not a hardship. My mom's commute to work is an hour. The nearest grocery store is a half hour in the other direction.