I must agree with Steve Miller's assessments and comments concerning the interaction with the Police. Being involved with various aspects of hurricane, storm, and severe weather chasing for over 20 years, I cannot say that the Police are on a power trip by refusing to allow you or someone else to go past a certain point. By what you wrote, it seems you think that a "Media Pass" warrants certain special privileges to drive down a road.
A Police Officer is given discretion to act or not act, but, in that discretion, he / she may chose to allow or not allow someone to pass. Under safe conditions, a Police officer may allow certain Professional Courtesies to be extended to you, but is not a guarantee, nor a right. Since you most likely could not see far enough down the road to tell, I would gather you really don't know why you could not go through.
Since you feel that the police are more dangerous than a hurricane, you should probably stay at home or out of sight as there are many more Police than Hurricanes and you will be in a lot of danger.