Rumors are the Nats went over slot and signed Petry to 2.09M. They apparently paid a 620k overage penalty. Didn't lose a pick, but I'm also unsure how this stacks up to prior years.
Edit: Looks pretty consistent that the Nats went over their pool by 5% or a little less for nearly the last 13 years. This is the first year that they went well under slot on their first rounder though.