It is unclear why there was a cash register at the airport gate where Commissar Pozega (played by Oscar Homolka) entered.
It could be the airport's gift shop, but it is positioned awkwardly right at the doorway where passengers depart and arrive.
Burbank Airport was used as the exterior where Commissar Pozega arrived. Located north of downtown Los Angeles, its greatest fame is arguably that it was the home base for Amelia Earhart's airplanes. Earhart (1897-1937) is still America's most famous aviatrix.
This show's plot was borrowed four years later by Barney Hosts a Summit Meeting (1968)m in which Barney Fife is assigned to find a suitable home where a summit meeting can be held with a visiting Soviet Russian official.