D/s "protocol" is not the only place this issue comes up.
I was raised to call ALL my elders "sir" and "ma'am" and upon entry into the Navy, had to learn a whole new protocol. I did that, but not instantly.
The primary difference here, of course, is that there actually is no specific protocol, defined as such (thank god, or I'd not be here long).
So, here is a great place for you to employ that which you have learned in various places, and been trained in (also in various places), and thereby learn your proper fit in this place.
I give you my best wishes in doing so.
Additionally, I echo Red Dragon's well stated post.