Final answer:
The script from National Donut Day is indicative of the Legal Positivism school of thought, where law is seen as established rules and guidelines, as shown by the character's reference to an employee handbook for procedures.
Step-by-step explanation:
The dialogue from the script about National Donut Day invokes principles of jurisprudence that resemble the Legal Positivism school of thought. This school emphasizes that law is a set of rules and guidelines created by society, as the character Joyce refers to an employee handbook with established procedures for the distribution of gifts which must be followed, indicating the existence of established norms and authority within their organization.
It aligns with the example of Lochner v. New York, where the Supreme Court struck down a law based on liberty of contract, as well as Nader's research about how legal processes are applied in American corporations, focusing on rules and procedures.