Look at the cow underneath the tree. Embedded within the cow's spots is an image of a pig, which as the Burlington Free Press reminds us is the '60s-era epithet used by protesters to refer to police.
Reuters reports that it was likely put there by inmates. The state, Reuters adds, "contracts with correctional facilities employing prisoners to make some print products, including the cruiser decals." One or more inmates somehow accessed the computer program holding the image and rejiggered it. The quality assurance department failed to notice it and as far as the state police know, the modified decal was used on as many as 30 Vermont State Police cruisers.
Some weren't laughing.