I know this is a legitimate business and as such, I shouldn't laugh, but it just strikes me as extremely hilarious. I know the geese can be a serious PITA, but using the dogs seems like the sort of system we employ here in the Fall with leaves: we blow our leaves into the neighbor's yard and let THEM worry about them.
K9 dog: "I work for the police, sniffing out drugs and bombs. What do you do?"
Border Collie: "I scare the bejesus out of geese."