Responsive design for a government website, means, among other things, that it must be handicap-accessible and conform to screenreader guidelines, be viewable on browsers of constituents who may not have purchased a computer in the past decade (i.e., IE6), and also compatible with modern browsers.
This is a lot of work, especially making a website that is screenreader-accessible or works in IE6. You don't get to just abandon those visitors, like so many websites do today. Those people have just as much a right to access a functional government web page as people using modern browsers.
I just checked the site in question and it is not responsive. Being able to conform to screenreaders and older browsers is not difficult by any means and certainly shouldn't cost anywhere near even 1% of what we're talking about here. In my humble opinion.
This is a lot of work, especially making a website that is screenreader-accessible or works in IE6. You don't get to just abandon those visitors, like so many websites do today. Those people have just as much a right to access a functional government web page as people using modern browsers.