There is no conceivable circumstance in which a rule should be broken. If rules are not followed by society, the end result is chaos. Rules are put in place to protect the members of a population from unsafe behavior; therefore any deviation from the rules of a given society can only result in the victimization of some person or party. No exceptions.
Example: "I was speeding because my wife is in labor and I must get her to the hospital quickly." A valid argument on the surface. However...
1. That is why we as taxpayers fund vehicles with flashine lights and sirens. utilize them.
2. Suppose you get driving faster than you can handle, resulting in a traffic accident. You may end up injuring or killing your wife, your self, the baby, or an innocent third party with whom your vehicle collides. Can you then justify your breaking the speed limit despite the fact that your willful actions cost another person their life?
Therefore, I conclude that any breaking of a rule is unacceptable in any circumstance.