Just How Progressive is Northern Virginia?

I saw this at Tyson’s Mall tonight.  For those that don’t live in Northern Virginia, Tyson’s Mall is what Sarah Palin would call Hoity Toity.

My real question is why they do this.  Doesn't make more sense that the hybrids do more driving to cut down on emissions?  They should put all the gas guzzlers right next to the stairs and make the greenies walk.  That would cut down on more emissions wouldn't it?