Us Angelenos are only a few hours away from the start of Carmageddon, the July 16 and 17 shutdown of 10 miles of LA's eternally clogged 405 freeway. Over 500,000 cars travel the 405 in a given weekend, so it's no wonder this city is in the midst of an epic freak-out over how hellish traffic might be if drivers don't heed advice and take a much-needed vacation from their cars.