Courtesy Motor Sales v. Ward

Courtesy Motor Sales, Inc., an automobile dealer, and two of its employees brought suit in the superior court of Cook County to declare unconstitutional a statute prohibiting the sale of automobiles on Sunday, and to enjoin certain public officials charged with its enforcement. The superior court found the legislation valid and dismissed the complaint. Plaintiffs appeal. Pursuant to leave granted by this court the Chicago Automobile Trade Association and the Illinois Automotive Trade Association have filed a brief as amici curiae in which they urge validity.

The act in question, passed at the…