The title is a question asked of home front citizens during World War II to reduce gas consumption and to keep train/plane seats available for traveling servicemen.
The cue card Dr. Pym is reading from during his TV announcement shows his exact text in Latin.
When the Chief describes the President's dream to Max and 99 he tells them that it involved him firing his whole cabinet and replacing them with the members of Jefferson Airplane. Of course, during this time the president was Richard Nixon and he almost did have a meeting with a member of the Airplane. Sometime around this period Grace Slick was invited to a White House tea for alumni of Finch College, where Tricia Nixon also attended, albeit a few years later. Slick was invited under her maiden name of Wing and she intended to use the occasion to pull a prank on Nixon. Her intent was to get close to the President and put a small amount of LSD into his tea. Slick also invited radical leader Abbie Hoffman to go to the White House with her. However, Secret Service recognized the pair and escorted them off the premises. Also, even if Slick and Hoffman did pass through security they wouldn't have been able to go ahead with the plan due to the fact that Nixon wasn't even on the premises.
In the first scene, Dr. Pym, listening to a radio station, exclaims, " 'Tiptoe through the Tulips'? ... That woman has the worst voice I ever heard." This is a gag on the oddball male falsetto singer Tiny Tim's hit song of that title. In addition, Tiny Tim's instrument was the ukulele, not the banjo.
Pym says that the deadliest poison known to man is artificial sweetener. He refers to sodium cyclamate, a popular sweetener that had recently been proven carcinogenic.