Then fine him $1. ;^)
It’s not a courtesy rule, it’s bad for the league to have coaches yapping about the refs in press conferences. Everybody knows the refs miss calls, everybody knows the refs missed that call (guy leaves on a stretcher, nobody goes in the box, yup that’s a missed call), there’s nothing to be gained complaining about it to the press. That’s why the league has a punishment policy that can fine and suspend players even if there wasn’t a penalty called on the ice, because everybody knows refs miss calls. And Q’s been around the league long enough he knows all that, he stuck his foot in it anyway, now he’s fined. Of course given coaching paychecks 10 G ain’t that much.