While we have never met, Humor, I feel fairly safe, based on reading your prior posts over the last year or so, that you will do nothing more than invite trouble carrying around an expandable baton.
I doubt very seriously you posses the physical skills or mental mindset to properly deploy the tool.
Take RetDetSgt's advise and carry something of an aerosol you can spray at a loose dog. They really do not like anything being sprayed in their snout and face, especially if it makes a hissing sound.
I would recommend Oleoresin Capsicum, but think you would end up getting yourself into bigger issues with it since you don't mesh well with some of your neighbors and tend to stick your nose into things better left alone.
With that said, Arizona is the bastion of the Old West. While some of the uppity back east socialists don't get it, we believe in individual freedoms and the US Constitution out here...you can legally carry an ASP, OC, or a firearm.
Carrying it is not the problem; it's what you do with it.
This career is not a sprint, it is a marathon.