Keller is the best place to work! I love, love, love my job and department. I am on mounted patrol too so when you see the horses, look for me!
I can't remember where I saw the route maps, but I sort of have a general idea because we have to close streets, etc. Some of our off-duty officers will be directing traffic...which is NEVER fun. Try telling someone they can't go there when they REALLY want to. I seldom lose my temper, but when I do it is directing traffic.
I cycle in Keller sometimes after work (I live in Argyle so usually I cycle here) and occasionally back and forth, but in traffic 377 is a slog.
Glad to meet someone from our city!