Have no idea how they obtained the keg, but the online taplist indicates they currently have kds on tap. If the listed av. Is accurate (11%), then it may from a previous year. .
KDS was in Portland last month. Fremont is coming to Oregon, might be a friendly preview of things to come.
The same thought crossed my mind, though typically, I would have expected the keg to have gone to some place in PDX rather than Eugene. Also, the abv. puzzled me. The bartender I spoke to was fairly certain the 11% abv. was correct (it was also printed on their beer menu), which would mean it's not the current vintage.