Heard this on NPR this morning:

The price gauges on some mechanical fuel pumps don't go higher than $3.99, but the price of diesel has soared way past that, forcing some gas stations to shut down diesel pumps while they figure out what to do. Washington state has a solution: Stations can sell diesel by the half-gallon, as long as they post big signs.

Funny, we had the same problem with our biodiesel pump at the Solar Living Institute in Hopland. Solution? We paid a few hundred bucks to have the "computer" (an intricate assembly of gears) replaced with one that can go a lot higher. Quick, easy, effective. Why gas stations would shut down, or ask for the ability to sell half-gallons, doesn't make any sense to me.