You nailed it, not to mention the parking and violation information, tax key information, bus cameras, school surveillance, body cameras, squad GPS data and dash cam video,literally anything they can tap into. The social media is a big thing, capturing real time information at the scene can drum up witnesses, capture photos of the area prior to the incident, it all goes a long way.
This is similar to the fusion centers throughout the US where these technologies are put to use. IBM has been focusing on bringing its predictive analytics to municipalities
linking their RMS arrest and CAD call data they can really pinpoint with significant accuracy the homes their officers will be visiting.
The ALPR systems can be linked from one municipality to another as well, tracking vehicle routes and times people are moving illegal substances or when rival gang violence may occur. Over the past 5 years law enforcement has been booming with technology. Today's police Chief is embracing technology and relies on it to make many of the daily decisions.
Where the privacy issues come into play is that, like anything else, technology has grown at an alarming pace and laws have not kept up with the growth. Many cities do not have official retention policies for this data so, they are keeping it indefinitely. To compound the issue, the politicians who have to address policy regarding these technologies are non-technical people with little understanding of the implications. (I think this is easily the issue on the federal side as well, old guys who don't know what they are dealing with)
So, get used to it is right. I say, embrace it, there are a lot of opportunities for people interested in bringing technology solutions to law enforcement. There are still a very large number of RMS vendors who are 5-7 years behind, slapping new interfaces over old technology, there is a demand for this and most of them have systems that are antiquated, lack modular design and require complete re-write in order take advantage of current technology.