For the first year or so of BTB, I used Nellie Mae Rowe's Pig on Expressway (1980) as my header art. Rowe, who died in 1982, lived in Vinings, George, just across the Chattahoochee River from Atlanta. Her house was lodged between its two very busy expressways: I-75 and I-285.
A more recent discovery, here is Kurt Knobelsdorf's Swine, Man and Van. The artist lives and works in Miami. Is there something particularly (or peculiarly) southern about pigs on the road?