MAIL FRAUD - 18 U.S.C. 1341, makes it a Federal crime or offense for anyone to use the United States mails in carrying out a scheme to defraud.
A person can be found guilty of that offense only if all of the following facts are proved: First: That the person knowingly and willfully devised a scheme to defraud, or for obtaining money or property by means of false pretenses, representations or promises; and Second: That the person used the United States Postal Service by mailing, or by causing to be mailed, some matter or thing for the purpose of executing the scheme to defraud.
Getting information from the AG for a satirical book which would be sold for profit, by lying about why he wanted the information, comes pretty close, in my non-expert opinion.