In case you were wondering, I found three cases in the U.S. Reports where a party had the official title “Rabbi” in the caption. Only the Ginsberg case was a grant.

• NORTHWEST, INC., et al., petitioners, v. Rabbi S. Binyomin GINSBERG (Argued Dec. 3. 2013).
• Rabbi Luzer WEISS, Director, New York State Department of Agriculture and Markets, Kosher Law Enforcement Division, petitioner, v. COMMACK SELF-SERVICE KOSHER MEATS, INC., dba Commack Kosher, et al (Cert Denied 2003).
• Isaac ZABARE, aka “The Rabbi”, petitioner, v. UNITED STATES (Cert Denied 1989)

The last one has a cool alias.