I can appreciate the want to allow people to walk and bike to the store and perhaps consume less in general. But saying that people can't buy a lot of groceries seems like a bit of overkill to me.
The plan intends to discourage large purchases, which will help ensure that people walk or bike home.I really only have time to go to the store once a week and I walk and use a single reusable bag. But if you have a large family that can be a bit tougher. What do you all think?
If you haven't seen the dramatic photos that show the change of the Vancouver skyline, i suggest taking a look at Price Tags.
I think Megan McArdle completely underestimates the value of buses and bikes in congestion pricing schemes. She doesn't make a single mention of them. While the subways in New York are crushed, if you limited traffic and gave buses and bikes some lanes, you might find that transit service could improve and people could get around the city just fine without their cars. While I love the subways and think many cities should have better subway systems (ie San Francisco) I think we discount the roll of buses and bikes at our own peril.