The $250,000 would be worth $3,865,122.70 adjusted for inflation to the year 2018.
'Aunt Alice' in the sock recording is voiced by Richard Dawson
When Carter, impersonating the Gestapo agent, backs out of Klink's office, he kicks a leg of Hilda's desk. Judging by Sigrid Valdis' reaction, this was not planned but the scene was not reshot. Update: Her reaction may not have been planned, but it was still in character to be startled. Also, it is possible that backing into the desk was planned. After all, it is Carter playing a Gestapo agent, and it would be in character for Carter, since he is somewhat of a klutz.
Hilda, near her desk, is talking with Hogan about all the things he still owes her because of all of her help. At one point, Hogan asks, "How about a nice cocktail ring?" Not impressed, Hilda replies, "How about a nice engagement ring?"