09/25/2012 01:41 pm ET Updated Nov 25, 2012

Carmageddon II: Don't Skate Or Bike On 405 This Weekend, CHP Warns - Los Angeles - News - The Informer

People threatened to exploit the symbolism of a car-free 405 by riding bikes on it and using it for other environmentally friendly activities during the first Carmageddon shutdown last year.

But, save for a few random acts of planking and dining, the mass transportation demonstrations that some cops feared didn't materialize.