Only a Burger King, and the Little Folk do not respect burgers.
Harry owes fealty to Mab and the Za Guard fealty to Harry, he is their Lord not their king.
Mab has paid for their armour and livery, therefore adopting them formally into the military structure of Winter, through the offices of the Winter Knight. Harry reports directly to Mab and is her principal enforcer.Toot is now recognised as Harry’s subordinate, no one but the Queens can order Harry around, and the same applies to Toot, not Lea, not Kringle.
They therefore perform a similar function as the Household Cavalry or one of the other ceremonial units in the UK military protecting the Queen.