Perhaps...as for taxi/bus....it's a 5 mile walk and they don't come out here...working at a secluded military base ftl.
If you intend to do it through taxation, couldn't people just get around it? I can buy 40,000 gallons of gasoline on the futures market at ~$2/gallon. Are you going to prevent people from buying gasoline? At $12/gal, it would make sense to buy a storage faciltity. Because of people setting up these cooperatives, we would essentially have a gasoline hoarding problem.
Secondly, there is little guarentee than a $10 increase in the price of gas would actually translate into anything. For instance, in TN we passed a lottery amendment for it to go to scholarships. Slowly, but surely it is going to other things. Pre-K, afterschool programs, etc. The are using the lottery scholarship to supplement the general fund, then diverting general fund dollars that used to go to those programs into other pork projects.
Lastly, I think our dependance on foriegn oil is key to Middle Eastern stabalization. Not to say it is by any means stable now, but I think if we cut them off completely, and sent them to the dark ages again, I think it would be much worse as faras terroris, etc. is concerned.