I was specifically think of the CA public workers pension which I mistakenly remembered as 25 years (apparently it's 30). I'd say that's close enough and no where near a straw man. I wouldn't be surprised if there is a 25 year example in a different state too.
But I'm still genuinely interested in finding an example like koolba mentioned.
[0]http://www.theatlantic.com/politics/archive/2011/06/in-calif...