Irish Bobby Shields accidentally calls Renko "Steve," after baseball player Steve Renko. (Several Hill Street characters have the same last names as major league baseball players: Furillo, Davenport, Bates, Coffey, Daniels.)
The title comes from a parody of a series of bumper stickers popular in the 1970s and 1980s, of which the most common one was "Honk if you love Jesus".