Like it or not, MS Office is the most widely used office software package in the world. Local government needs to serve the people it represents (mostly MSO users) more than it needs to engage in petty social engineering about IP rights. Citizens' need for utilities, civic infrastructure, enforcement of regulations, and due process of law trumps your desire for Open Office. Don't wanna be without your FOSS? Try a few weeks without working traffic lights or a safe water system.
If you don't like it, then convince the public to change their preferences.
Software is a tool, not an end.