Slight update...
I made contact with the county mosquito control guys this morning, to let them know I had a hive. I asked for info as to the type and frequency of applications. The respondent was more than helpful, and I got a good feeling that they at least care about the bees in the area.
After writing, and reading the prompt response, I mentioned the conversation to my wife. She informed me that she had seen the mosquito control truck fogging the neighborhood Wednesday evening as she came home around 7:30.
Just my luck! I get the combination of a spouse who cares very little for this particular hobby of mine, and the terrible timing of installing bees only to have the area fogged 24 hours later. And then I don't find out for another day or so.
My initial inspection for the queens status is this afternoon, and I guess that will tell me if I lost some population. My observation of the comings and goings shows no diminished activity, with some bees returning laden with pollen as early as 645 this morning.