Ruddock questioned Courtney's interpretation in several areas, and while he had no problems with the first-half sin-binning of skipper Colin Charvis, he felt several Pumas players should have suffered the same fate.
"The referee didn't manage the tackle area as well as he should have and we'd like to talk to him about that," he said.
"They slowed a lot of our ball down for about 25 minutes, and it was a bit harsh for Colin to be sin-binned on our first offence, but it was a clear penalty.
"There are several things I want to talk to Courtney about. He's an excellent referee, but it's only right that he clarify several issues.
"We want to make sure there is consistency."
Ruddock was surprisingly upbeat two days after leaking 50 points against a developing Argentina side.
"We've had a look at the video," Ruddock said.
"There was a lot of good stuff and a lot of bad stuff.
"Our scrum held up really well and that's a big bonus for us. Our set-pieces are very good and that's one area I wanted to get right.
"We scored five tries which shows we can still score points and we had one to Shane Williams disallowed which we feel strongly was a try.
"We let in a couple of soft tries, but we can fix what we did wrong. Not many of the tries came from our defensive system - we're very comfortable with where we're going and it's just a matter of tidying up some things."
Meanwhile, Ruddock holds little hope of record try-scorer Gareth Thomas joining the squad after the veteran fullback injured ankle ligaments in last month's match against the Barbarians.
"The last update is that he's just started running, so it's not looking particularly good," he said.