As was noted just having a cloak is illegal, not only its use. I can link off to a picture of the actual device aboard the vessel .:j:.Collector would it be required, though I defer to Max on whether that'd be wise. And I recall in RP that the Junker Barges have been warned before on this note. If there's a bug, we should see about it being fixed in code. In the mean time, we have tech that's illegal on ships who should know better about entering our space with them. If your techs can't "unjam" them out of the proper slots, then I suggest that RP wise you avoid going where you can't have them. Like, say, over Manhattan?