The highly suspicious package is a quest item in Fallout: New Vegas.
Characteristics[]
The package needs to be delivered to Motor-Runner in Vault 3 and can be received during the quest Aba Daba Honeymoon. If the Courier fails the quest, this item cannot be removed from their inventory.
Location[]
In Diane's possession at the Red Rock drug lab and given to the Courier after becoming a drug runner for the Great Khans.