[6] Featured in newspapers and magazines, traveling to fairs and festivals to demonstrate his skills, Warrick's fame increased appearing on Good Morning America and On the Road with Charles Kuralt.

When he returned from service in World War II in 1946, he began painting his family's dairy barn with a team of Mail Pouch sign painters; they suggested he join them.

[4] Warrick trained under a seasoned Mail Pouch barn painter, Maurice Zimmerman, who also painted ads for competitor Red Man tobacco, Simoniz car wax, and Minneapolis Milling Company.

[1][3] Warrick painted signs in Ohio, Pennsylvania, West Virginia, Maryland, Kentucky, Indiana, New York, Illinois, and Michigan.

[3] Warrick continued painting barns along lesser roads and highways until his retirement from the Swisher International Group, owner of Mail Pouch Tobacco, in 1991.

[9] When he retired, Warrick continued to paint Mail Pouch signs on the sides of barn-shaped bird feeders and mailboxes that he would make and sell in his workshop in Belmont, Ohio.