Otherwise healthy bermuda can take a low rate of atrazine applied once. It might turn a little yellow or even brown, but grows back pretty fast. The granular form on fertilizer is not as hot as a spray application. Especially if you stayed within the label rates of the fertilizer. When atrazine is being used to kill bermuda in St Augustine, that involves high rates applied 30 days apart and in combination with another herbicide known to be toxic to bermuda. It might be different if this was done to a lawn not on irrigation. Dried out lawns dependent on erratic rainfall are not the same as lawns getting 1" of water per week guaranteed.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738