From the IC desription, didn’t sound like Al would have any trouble adding the plastique to the drone.
But in case it is necessary, here is a Pickpocket test to do it without setting off any alarms. put bomb on drone: 13d6t55
If the Light Fingers power works on drones, then it is also -5 dice on its opposing roll.
(Rules not clear if it is a Mana or Physical effect – I suppose you could argue it either way.)