We’ve seen plenty of plays on the “O” in words, but this bumper sticker is a double.

From commenter martywd, a footnoted email:

Today, when leaving our Public Library situated in a ‘burb just north of the *Bluest City in Texas I saw this pickup just screaming for some Le▪gal In▪sur▪rec▪tion.

*Austin

(Even I knew that.)