I'm a life long east Tennessean and live a couple counties from the wreck. Blount county is mainly rural except for Maryville {where the derailment is} and Alcoa. Looting by our firefighters isn't a concern nor our cops for that matter. Most rural areas in Blount County are VFD and Deputy covered. This one sounds like it's in town so Maryville Police, BCSD, and Fire Depts both city and VFD, along with TEMA and likely Knox County Mutual Aid {more firefighters} would show up. At any rate lots of responders. The Looters if any would most likely be opportunist seeing it on the local news.
Our firefighters in East Tennessee have a good reputation and many serve at their own expense. One stroke of luck is IIRC Blount County {The airport} is where TEMA Tennessee Emergency Management Agency is located.