Move the masses. Think like Martin Luther King and paint a vivid picture of the great things you hope to accomplish. Once your colleagues see what could be achieved with a little audacity, they'll be more likely to turn a blind eye, help you navigate the labyrinth, or hang the rules and join the revolution.
Act natural. Behave as if your actions are totally normal and only the most self-assured colleague will challenge you. And if they do? Boost your credibility by speaking at a measured pace - gushing suggests guilty; steady suggests self-assured.
Befriend rule-enforcers. It's hard to be tough on someone you like, especially if they backed you up at that board meeting.