After their return from the Moon, the Apollo 11 crew had to go through
customs at the Honolulu Airport.

After returning to Earth from the first manned mission to the Moon, the
Apollo 11 astronauts were not exempt from the rules of international (or
even interplanetary) travel. After splashing down in the Pacific Ocean on
July 24, 1969, astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins
went through customs at the Honolulu Airport.