Question: I'm trying to write a letter to the editor of my local paper about their report of a man who doesn't think the rules apply to him. Is there a word for this? He's a bit of an egoist, demanding to speak at city council meetings after the public hearing portion of the meeting has been closed.

Answer: 
What—nobody thought of "pompous"? [From Webster](http://www.merriam-webster.com/dictionary/pompous): 

> 
> pompous - having or exhibiting self-importance : arrogant 
> 
> 
>
May be a bit extreme but: *psychopath* or *megalomaniac*