Held Items on Edited Pokemon

Something that has been on my mind, but not yielding any real results when searched for here or elsewhere, stems from editing the Held Item of a Pokemon in Pokesav. I know from a quick experiment on an emulator that a Pokemon can be given a key-item as a held item and you may take it, but the save was not far enough along for me to further experiment, so I figured I'd just as well ask here.

If a Pokemon is given one of the event key-items - Azure Flute, Oak's Letter, Member's Card, Secret Key - will the events associated with them be triggered upon taking the item from the Pokemon? IE, if I give a pokemon the Azure flute, send the PKM to my DS and go to the sky pillar, will I be able to access the Hall of Origin? Or, if I go to Route 224 after taking Oak's Letter from an edited PKM sent to my DS via SendPKM/HyperGTS, would I find Oak there and trigger the events to get Shaymin? Etc.