Alright guys, for your posts when you interact with the airport security, I will allow you to NPC their actions to speed things along if you want.
They are reasonable authority figures, and they're only looking for anything explosive like frag grenades or launchers, and restricted Yamataian military technology on your persons. Having Luca's stamp and clout around you loosens these rules a little, but don't stretch it too far.
As far as I know, Enzo will be delivering the restricted items to a predetermined point ahead of time not far from the airport, probably a hotel in Kyoto. Unspoken parts of the plan are inevitable, but they're planned.