Took me about three or four hours. 3,307 words.
Alex returns to the station for his new job three days later (well, on the morning of the third day) and is welcomed by the old dogs and meets some members of the rest of the crew that he'd missed in his initial punishment tour.
It's my usual fare: farting, fat feral animals, squashing, et cetera.
You can find it on FurAffinity here: http://www.furaffinity.net/view/16270843
And SoFurry here: https://www.sofurry.com/view/847339
And DeviantArt here: http://flippers55.deviantart.com/art/Police-Dog-4-526689440