Right now, almost all information from city and county departments shared to social media services is either not shared in other networks, or has no canonical URL where those updates are kept in a way that's compliant with open records laws or even just searchability.
My idea is to have either a single Savannah Mastodon instance, or potentially one per municipality in Chatham County (the county, city of Savannah, Pooler, etc) that could be used as a single publishing tool that can then federate to any delivery method residents or employees require.
For example, if there's a road close because of an accident, the police department could have a bot that publishes the road closing to Mastodon based on a trigger from the city's traffic management system (let's assume that exists for this example). Mastodon would then be the publisher to any "subscriber" to traffic notifications. Those subscribers could be on twitter, SMS, Facebook, etc.
It means less integrations for each department and an easier path to publishing to new platforms in the future. It would also give government a place that complies with open records laws and meets security standards.
We could also end up writing plugins for mastodon to publish new kinds of attributes with status messages like lat/long, or custom attachments.