There have been 7+ reported cases in Ga. Schools are not in the practice of leaving themselves exposed to lawsuit so they do things like this. A school district I worked for (as a biology teacher) wiped out a colony of ground nesting bees (200+) just because of concerns that someone ‘might’ think they were stung by one and having a bad reaction. Once they know about it, they are liable for damages. If they have pooling water and some one is infected, they are open for a lawsuit. Zika virus is not something someone wants or would want to play around with. It causes birth defects and is a very serious concern for communities where it is popping up.
http://www.cdc.gov/zika/geo/united-states.html
Even with the vector not being in the local area, it is a distinct possibility its going to happen and then its really going to go crazy in regard to spraying… Not saying I disagree with you, just saying that I predict its going to get much worse in regard to pesticide spraying. I would move my bees.
As great as that letter is, unfortunately this is not going to be a battle you are likely to win…