Airbag cannot be removed because of this tamper proof part

I cannot remove my airbag because it has some sort of tamper proof lock. I started on the left side of steering wheel removing a 10 mm torx bit and then right side of steering wheel has some sort of tamper proof lock that is about the same size as a 10 mm but totally different no locals or o lines that I have contacted have ever seen it before and the dealer ship was useless they told me they do not sell parts ! I just need no if someone can tell me what this is called and where I could possible find one the dealership did mention snap on would have one but I tried to find it and without knowing what it is called it is very hard to locate please help me?