The boop filter isn't the only rule Parson broke - throwing away the sword would seem to be a violation of Duty.

I wonder if he will order Wanda, Sizemore and Maggie not to mention the sword to Stanley (who doesn't know he had it). I guess until Book 2, and probably even then, I'll just have to assume that Stanley is so overwhelmed by everything that's happened that what the sword thing says about Parson's loyalty won't stand out to him.