An idea that makes no sense as kegs would be cooler if left exposed to the wind. By surrounding them with snow, trapped air acts as an insulator thus limit the amount of heat lost from a keg. Whilst there will be some cooling of the liquid (beer) inside, you could have considerably cooler beer by not insulating it with snow.
Then again you cant blame em...rednecks are the sharpest crayons in the box
Q. Why do Eskimos live in snow igloos?..
A. They are called inuit...It traps air acting as a insulator thus keeping them warmer
Kegloo a rednecks brainchild; "Hey ma get on the dang roof top"