There is no reason at all for a ZP member to have his or her options set to PMs from friends only. All questions and needs for assistance should not be ignored by a ZP, unless it's those common "Can I have your doll", ect. If a ZP goes AFK, they should have some way of notifying all players and reply to all PMs as soon as they get back.
Send me a PM on Zone about your problems and who set their PM to friends only and ignore you and I will talk to them myself, I'm *KilluaZ, the Zone Patrol Captain.