No carrier in its right mind (if carriers have minds) would publicly disclose any such priority. Why? Because it simply begets petty bickering at a moment when tempers are hot, people are really stuck and favoritism is disfavored (unless you are favored).

It goes without saying that any carrier will take care of its highest value customers (not necessarily status, but value), those whom it must take care of (e.g., disabled, kids), and the noisy (getting someone out of your hair is a wonderful thing). And needless to say, senior executives will make arrangements for their friends.

Thus, buy a CX level a drink, get his mobile # and keep it with you.