I've found the relevant passage on buyouts in the CBA. Turns out I was confusing "RFAs with arbitration rights" with plain old "RFAs."
This means that Schneider is not a candidate for a buyout, and nor would any team be in a position to buy him out (all arbitration hearing having come to an end).
So, the options are
1) trade him with a high pick / prospect to a team who will then bring him through re-entry waivers -- either he clears and they keep him and his full salary, or they lose him and are left with half of his salary. In this scenario, you're basically paying someone else a pick/prospect to absorb the costs / cap hit of Schneider's salary / half salary.
2) bring him back through re-entry waivers, at which point he'll certainly be claimed by another team and ANA will be stuck with half of his salary on the books.
Looking at those options, the first seems more likely. Looking at the list of teams in line to put in a claim on Schneider whenever he is eventually brought back through re-entry waivers (and provided that Heater is right about the order of precedence changing from 30-1 to 1-30, the only teams in front of us who might claim him would be NJ (who could certainly use him, but who are very tight against the cap as it is), MIN (who already have Zidlicky, Burns, and MAB), and COL (who have tonnes of space).
We might actually have a shot at this, although it might take weeks for all this to happen. I can't imagine passing Schneider up if he's to be had for $2.8 mil.