Yes, this would be interesting. We have Fire House too. We also have a person who creates reports from several of our Info Systems. I plan on him filtering the data that I need to see in his data warehouse, giving me access to it (via connection through ArcGIS for Desktop), and then geocoding against our site addresses and road segments. From there you can create a heat map.
First, for me, I need to verify our addresses in the city and we are currently in that process.