Having volunteers may not help. Some employee with a key would have to show up if it like California there could be a state law which makes it illegal for an employee to volunteer to do work. They must be paid - by state law. It is very possible that they then must be paid a minimum of 4 hours for showing up to do work. On top of that there may be a union issue requiring security to be present any time the government building is opened, etc.
darn typos
On the other hand, if the flagpole is outside, what’s stopping any citizen from raising their own flag on it? They already admitted that there won’t be any employees around to file a complaint!
I had an inkling the unions would figure into this .... double GRRRRRRRRRRRRRR!