The Wyldfae? Did they sign on? I don't think so.
And even this implication is speculation.
We have no information regarding his Court affiliation (or lack thereof).
There was a reference buried in the books somewhere to
Faerie (as in the whole of the realm, and not merely one of the Courts, or even both of them) potentially taking action on a violation of the Accords. I believe it was in reference to the RC incursion into Unseelie territory, but I could be wrong, there.
@Umbralux:
Yes, social status matters when calculating the appropriate response to an incident.
It does not, however, matter when deciding whether an 'incident' occurred (though it might render the incident so miniscule that it is ignored in favour of continued passable relations).