That article is RIDICULOUSLY misguided. It makes the same failures as the "55 saves lives" propaganda did, and then some.
Traffic congestion will not stop as people need to commute, now they have to pay more for the privilege.
Higher gas prices will stop wars? WTF! What happened to the allegations that we
went to war
for oil? When something is in high demand, the incentive to go to war is there. Shoot, the USA fought Canada over
trees once upon a time.
So, it can't hurt to walk the three blocks to the grocery or bike to school or work.
There is no grocery store within "3 blocks" of my house, biking to school or work is tantamount to suicide in morning rush hour (which will not abate with higher gas), and groceries are going to cost more as they need gas to be transported. If people can only go to their "local" grocery stores, those stores will have a monopoly and charge accordingly. Think of the "company store" in The Grapes of Wrath: "Sure you can buy that meat for a dollar less in town, but it'll take you 2 dollars to drive to town and back for gas. Your choice." (paraphrased)
My "local farmers" can't meet the local demand by themselves. Without gas to move produce, the suburban and urban areas will starve, and the rural farmers in the West will go out of business as they'll have huge harvests, but no way to take them to market.
It's been established that people by and large do not want to live by their jobs, and it certainly isn't practical. The idea of thousands of suburbanites trying to move into expensive cities, where there isn't enough housing for them all, is ridiculous. The DC metro is already having capacity issues, just imagine if the DC commuters in the 10+ commuter counties moved into the city to save on gas. It'd make the Tokyo train system look empty.
Lastly, the article makes a HUGE error in judgment:
If we let up on the gas pedal, we'll starve those oil-rich despots out of existence.
No we won't. Oil is used for much more than cars and electricity. Plastics require oil, medicines require oil, shoot, what doesn't require oil? Not to mention the idea that higher oil prices mean higher electricity prices. Sorry electric car, that makes you part of the problem, even though this article touts you as the solution.
I'm hoping that article was posted sarcastically.