Various 24 Allusions:
1. The part where Cartman is torturing the boy's father by farting in his face saying "Tell me what the plan is" it is probably making fun of Jack Bauer's first torture scene in Season 4, when he is interrogating a terrorist who plans to kidnap the Secretary of Defense.
2. The part where the agent says "This agency is being absorbed by Homeland Security" is a reference to "Season 5: 7 PM - 8 PM" when CTU is absorbed by Homeland Security due to a gas attack that had just occured in the building.
3. The part where the FBI arrests the boy's father and the father insists that his son is at school refers to the Season 6 premiere of '24' when the father of terrorist Ahmed Amar is arrested for being of Middle Eastern descent during a time of crisis. 4. Split screens, an electronic clock counting down to ominous sound effects and the phrase "the following takes place between..." - all these elements are in every episode of '24' and spoofed here.
5. Cartman's voice is harsh, just like Jack Bauer's.
6. All the cell phone ringtones are exactly like the CTU one. 7. Kyle seems to be playing the part of Chloe O'Brian, Jack Bauer's techie.
8. The head of the CIA looks a lot like Bill Buchanan.
9. Cartman injecting himself with apple juice resembles Jack's heroin addiction during Season 3.