They're conscious of the fact that they're bus ads in Minnesota without screaming, "HEY! I'M AN ADVERTISEMENT! ISN'T IT COOL THAT I KNOW I'M AN ADVERTISEMENT?" Instead, they're relating the product and the message to its surroundings. Very cool in my book, and the sign of creatives who think strategically about media and media planners who think creatively.
And I'm not gonna lie: On a college campus, a bus stop might just be the moment of receptivity for a whiskey ad...