If you're commuting home on the afternoon of March 13 and see a number of cars parked along the freeway shoulder, don't be alarmed: It's just a conservative group staging its version of a modern-day sit-in, or roll to a stop, or something. Think of it as a cross between a sit-in and a drive-in with the radio on.
Who knows how many people will actually roll to a stop on March 13 -- it falls on a Sunday this year -- but it never hurts to be prepared. If you might be commuting home from work that day (retail employees, I'm looking at you), make sure to gas up the car (as much as you can afford with gas at $3.50 to $4 per gallon, anyway) and watch out for drivers experiencing engine or tire difficulties who might need to pull over to the shoulder quickly but can't find enough space.
I tip my hat to Wonkette for this one.
Be careful out there!