You absolutely did the right thing....and the nerve of a board member breaking a rule too...that is upsetting. YOU would have been written up (or whatever they do) if YOU were the one breaking the rules, so why should they get by with it! And especially w/ a big dog (not that the dog is bad, but still). AND you need to have that letter sent in because what if the next time something DOES happen (Heaven Forbid)...so, it is better to have it taken care of ASAP before there is a next time!
Way To Go and I applaud you for taking a stand on this!
But why on earth would the owner be mean the the dog?? It came to him/her and the dog should have been praised! The dog did nothing wrong....now, if it had turned away and not come at all when called...but the dog trotted back....that is crazy...no wonder why some dogs are aggrassive....it is probably because they are confused! Poor thing!