I received an email response from Jim Graham, which isn't 100% satisfactory, but at least he's aware of the problem, at least pertaining to the noise of the whistles issue:

Thanks,
We have been over the whistle issue, many times, at other neighborhood locations. Its a problem, no doubt. They come only with whistles  I want to keep them there for the time being, since I am not sure how the traffic will develop. I am encouraging a different kind of whistle though.
Bests,
Jim