This sign let the secret agents know where the CIA headquarters was located. We cleverly disguised agency headquarters as a common neighborhood house.
(Made the sign from black foam board, paper mache' letters painted with aluminum paint, and letters cut out of metallic paper using my Cricut.)
After giving the secret password to the security guard stationed at the entrace to HQ, the drivers signed in their agents. The agents went to the fingerprinting area where their prints were taken.
Then they were issued their agent number and badge.
Others were given the opportunity to change their appearance at the Secret Agent Disguise station. They were offered hats, dark glasses and mustaches. They could also pick up their special issue hydration unit at that station.