Was SAR requested by family/friends? If yes, then maybe a BILL, paid directly to the SAR group and others directly involved, but not a FINE paid to the government. If SAR was not requested, then who is the government to decide to fine him? Don't you have to break some law in order to get fined? What law did he break? Negligence against others that causes them harm - maybe. But negligence against yourself? What law prohibits that? We all do stupid things to ourselves on occassion and don't get fined for it.
If SAR responded out of the kindness of their hearts - which they probably did - then they could send him a bill, but if he or his family did not request SAR involvement, I can't see how the bill would be a legal obligation. Where it me, I'd try to pay what I could (to the SAR group - not the government!), but would consider my paying to be out of the goodness of my heart, just like the rescue effort was for the SAR folks. I would resist paying any government fine unless it were shown that I broke some kind of law.