We can't even begin to answer this question with the little information provided. Did they have any duty to respond to you? Were they able to respond and refused to do so for you or where there no staffing available (the latter is the problem with small departments). Is this a subscription company that you hadn't paid for? etc. etc.. etc..
I'll tell you it's going to be rough. Generally you're responsible for your own fire damage regardless of the fact that the cause may be elsewhere. In this case you'll be hard pressed to argue the additional damage caused by the failure to respond. Further, if the department is really small, satisfying a judgement is equally unlikely.