I realize I will probably catch some slack for this reply but when you "really" think about it....well, just read with an open mind please.
The gov't knows that there are certain things that are a downright necessity to survive. Gas is one of these. We can go on strike for a month, no one buys gas, no one uses cars, truck don't deliver, there's no groceries in the stores, people call in to their jobs- can't afford to show up, children stop showing up for school sports, and so forth and so on. What happens... the gov't knows that at some point you have to show up for work in order to provide at the minimum - a roof overhead. (Although the housing is bad as well, but that's another story!!) They know that at some point we will break down and do or pay whatever we have to ... to survive. We go on strike and don't buy gas, we lose our jobs, then our homes, and it keeps snowballing. So we give in and we pay whatever they charge and we cut corners everywhere else, just to cover whatever necessities we can. We don't go to the movies, we don't eat out, we don't even rent videos, or we stop traveling to optional places such as church or after school activities with our children. Because let's face it the gov't can hold out longer than we can. People not wanting to buy gas on the 5th will buy what they will need on the 4th or wait till the 6th. The gov't knows we simply can't go without for a very long period and they are not known for having any compassion for the lowly little middle- or lower-class families struggling to just make it week to week. I'm already nickel- and dime-ing it to get enough gas now just to get from point A to point B because I can't afford to get enough to last all week, either.
So as far as buying gas on the 5th goes...if my tank is low and I have to show up to work...I have no choice but to buy it. Unfortunately that's what the gov't knows too, and they're exploiting it. In all honest reality...there's not a lot we really can do about it.
Sorry to sound so pessimistic, but in this situation...not much choice!!