I’d like to speak to the manager!!!

First I have a question…

Does anyone know the term for someone who yells in public not to make their point, but so that everyone in their general vicinity will know they are unhappy?

For example, let’s say the parking lot at a restaurant is full.  

A person, leaves the lot to go do something, and when they return there is no ready spot for them.  This person, decided to park in the no parking area, clearly labeled, which happens to be the access point for a neighbor who’s driveway is an extension of the parking lot.

When the person with the car, is asked to move, he begins to yell at the 22 year old hostess.  

But he does move his car. 

But when he returns to his seat, he complains loudly for everyone’s benefit.  

This continues, with his telling of his displeasure whenever he has the opportunity.

At one point his is yelling so loudly that the manager, hears and starts to pay attention.

Once again, his speaking is loud, not to prove his point, but just so everyone will know he is unhappy. 

He is insisting that a restaurant must have at least one parking spot for every table in the restaurant.  

He is insisting that when he returned there were empty tables, thus proving that the restaurant has more tables than parking spots.  

He is insisting that something be done immediately about this. 

There is no reasoning with the man, although the manager tried.  

It was very important for the man to make sure everyone knew that was annoyed.  Very loudly.  For everyone in ear shot.  

So.  

What is that called?