I see a lot of factions trying to extend their powers beyond their faction. Not through peaceful means but through measures such as these. It's my belief that factions exist to consolidate a playerbase and provide an example of how to play as any given NPC, or to try something radical and different, it is not a license to stamp your authority over anyone who does -not- have your faction tag.
These folks have not chosen to play by your RP, so why should you be forcing them to? SO long as they are RPing, however they chose to do so, there should be no reason for any faction to jump on them just because they don't like the RP.
Use what power you have responsibly, don't try forcing it down others throats, especially if they don't want it.
Saint Del is considered a holy healer of diseases of children, but also as a protector of cattle.