I wanna know what genius thought of this "boycott" idea.
Notice that the boycott was not to stop using gas for a day, it was to not buy it for a day.
If your consumption doesn't change, neither will the revenues. You just filled up the day before or the day after to 'avoid' purchasing gas on a particular day so you could teach 'the man' a lesson. So what? They just got their money the day before/after.