Report them for ooRP repsheets. Anyone hauling for the Outcasts should have, if they wish, the following guard factions non-hostile, and all else at starting status or worse:
Outcasts
Liberty Rogues
Mollys
Red Hessians
Lane Hackers
Junkers (maybe)
Granted, they can't complain if they head to one of those systems and get shot by players, but at least then they couldn't be reported for ooRP rep. If any other guard NPC is non-hostile, however, they need to shoot a CD or exit the way they came, otherwise that falls into the "not hostile with lawfuls while pirating above said lawful's base, while ID'd hostile to said lawful" type of rep-work.