It turns out a 10-cent gas tax hike couldn't even muster the votes, according to this article.

Baton Rouge Representative Steve Carter had filed a bill seeking to raise the gas tax by 17 cents. When he saw that would not pass, he then changed it to a 10 cent hike, hoping he could get the necessary 70 votes to pass the Louisiana House.

But as the day wore on in the House today, Rep. Carter pulled the bill without debate after he recognized that it would be 10 votes short of the threshold it needed to pass.