Earlier quoted context omitted.
Since the US government has historically been one of the largest customers in the zero-day market, my guess would be no.
The US government is also one of the largest customers of ICBM rockets too. And you would find that it is not an unregulated field at all. I don’t know about regulations in the field. All I know is that “US gov buys a lot of X, therefore it X is not regulated” is not a convincing argument.
This is not legal advice, obviously.