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I actually meant the new one- not the option that was in Labs. You can access it through: Optimization>structured data , in the case of the domain I was referring to ( large ecommerce site). It does show the data and the URL that it is on.

In case you haven't seen it, check out this post http://www.seomoz.org/blog/the-bigfoot-update-aka-dr-pete-goes-crazy Talks about domain diversification and ranking fluctuations as of recent. http://www.eurorailways.com

@ Brian - I wondered about the same thing.  Today's Moz SERPs report shows changes similar to what you described.  Bing results are very volatile for my site(s) so I can't be "sure".

Thanks for the detailed response and confirmation about the canonical being the best solution. This definitely helps. Some of the tracking URLs are actually being indexed. It doesn't seem to be negatively affecting anything right now, but I'd prefer to prevent any potential future problems if possible. Thanks again.