When Does a Ref Cross the Line?

Watching the Canucks v Calgary game the other day, there was a surprising exchange between Marcus Naslund and linesman Vaughan Rody...

 

You may need to watch the video a couple of times to catch what is happening, but clearly, Jim Hughson caught what was said by Rody to Naslund.  I'll help you a little...

As Naslund got the puck at center ice, he tried to dump it into the attacking zone, but Rody was standing at the blue line and the puck hit him, putting the Canucks offside.  You can clearly hear Rody shout, "Offsides!"  To which, Naslund turned around and says something somewhat inaudible, but to the effect of, 'if you weren't in the way...'

Rody responds...directly under the rinkside microphone...'Shut the fuck up.'  And, Naslund confronted him briefly. 

Hmmm...wonder if they had linesman that ran at the mouth like that, back in Maurice Richard's day??  Lucky thing for Rody that Naslund doesn't have the same temperment as Richard.