For all you know that was actually a spoopy Wild who wanted your artifacts. Play to the encounter instead of complaining it didn't go the way you wanted. 90% of these encounters would fare better for the interceptee if they played ball.
And in my experience of dealing with undercover officers in real life, they often move to detain before identifying themselves. I've had to explicitly demand they do so, citing regulation. Why was that not an option here? Be more character brained.
The potential for RP developments around this encounter have been squandered because of the option to complain instead. #ProblemsWithDisco
When contending with a monster, you'd be wise to give the devil his due.
