Summon your companion, flag yourself for pvp, and stand next to the opposite faction camper, with your companion more or less on top of them. Your companion will cause them to get flagged for pvp if they're using a bot to auto loot.
Farm them to your heart's content, or (if you have any form of push/pull skill) push/pull them away from the lockbox spawn point and laugh as their auto-loot bot loots nothing for their entire afking day