Got my official notification in the mail - still nothing about it in the recall databases but the dealer has a new catalytic converter in stock awaiting my vehicle coming in tomorrow for its oil/lube/inspection and resolution of U67, Catalytic Converter Efficiency Emissions Recall. Presuming everything goes well tomorrow, I'll try to post a summary of what was needed/done.
OKAY- UPDATE TIME
The converter was replaced but with some trouble. The attaching hardware was badly rusted as she was a rental up in New York and North Carolina. Rust had even destroyed mount points of the heat shield over the rear muffler so it was just laying on top and rattling. They kept the vehicle overnight, liberally applying penetrating oil to the bolts. Next day the nuts backed off with normal tools - no large breaker bars, pneumatic chisels or torches needed (YAY). Other than that the recall was pretty much effortless and free. Well except for the heat shield; had to pay for that but guess that's fair. Unfortunately I had a bunch of other work I wanted done since the detailed maintenance history is unknown. Report said routine maintenace was done but didn't list much specificity. Now everything is almost like new mechanically.