Not a "punt," but a shunt.
See also, Lyle Denniston,
Major gun case shunted aside, SCOTUSblog (Apr. 4, 2012, 2:42 PM),
http://www.scotusblog.com/2012/04/ma...shunted-aside/
A 37 year appellate attorney over at MDShooters, says he has never heard of an order of mediation when the parties have not motioned it. Nor has he ever heard of such, after Orals were given. He agrees with Chief Judge Kozinski.