"I guess my point would have been made."

The ONLY point made, would be you got kicked out of your 1st casino.

"I bet it would really get him thinking"

The only thing the pit boss would think about is getting security to escort you off the property.

The pit boss only enforces rules, he did not put the 6/5 rule in play. I can just imagine what he is saying to the other customers at the table as you are being carried out by the arms by two big gorillas, "Geez, why do I have to get all the fruitcakes on my shift!
You need to write a letter to the big guys, not aggravate a pit boss.
BTW, I bet the big guys send you a very nice reply to your letter, before they pitch it in the trash.