I've had problems with noisy dogs next door where I live, but not at the studio. It's usually quiet as a mouse after 4pm at the studio except in the summer when the Harley rental shop gets busy.
Pursuing the enforcement of local ordinances is the best legal option. Just remember that a complaint just looks like a complaint. When you tell the city officials about the problem, be sure to suggest some reasonable solutions. They have better things to do than listen to humans barking about other humans all day. For one, I would suggest that a covering for the fence is added, blocking out the dog's view of the sidewalk.
IAE, whatever happens, don't hurt the critter or if I ever meet you, I promise I will hurt you.
Bye!