Ha! Was this the "Goverment Blockchain Association" that was meeting in the DC Metro area? I may be have hornswoggled into one of their meetings at the time, and despite my vague enthusiasm for the technology, I felt like I was being sold a timeshare.
It was actually in Ottawa, Canada, targeting the canadian government. Same as you, I was interested in the tech, and my (non blockchain) company did business with the federal government, so I wanted to see what the hype was about. That was pretty much the end of my interest in the topic.