Well, what I hoped would be a simple fix turns out it will take another day to come to some sort of resolution. Where we're at now is:
I took my car to the Nissan dealership this morning bright and early. Dropped it off, got a courtesy shuttle ride to work, no problem. Plenty of nice people at the North Seattle Nissan dealership's service department.
Got one call from them around noon asking for more details of the problem. Explained in further detail the problem, and all was well.
Then got another call around 3:15pm explaining that they'd looked into the problem, verified that 2 window regulators need to be replaced, but that the almighty Nissan corporate warranty folks are denying coverage (because my car is at 62,000 which is over the 60,000 warranty extension). The dealer tried to negotiate with the corporate folks to get it covered, but got nowhere. However, TJ (the service guy) gave me Nissan's number so I could try to fight it out myself.
A call to Nissan got more nice people, who were rather helpful, or shall I say, as helpful as they could be without actually resolving my issue. The first person updated all of the basics, took all of my information, praised my choice of a Nissan Altima since it's the "most popular passenger car in the world", yadda yadda yadda, gave me a case number, and then passed me off to another "specialist" who really did nothing more than told me that a "specialist" (if everyone's a specialist, doesn't that make nobody one?) would talk to the dealer and I would receive a resolution by the end of the day tomorrow. I got no indication whether or not anything would actually be done about it, nor did I get the feeling that anyone I spoke with had any power to actually do anything to resolve it.
I called the dealer back, who were also surprised that Nissan wasn't going to do anything immediately, but agreed that the corporate people will probably breakdown and cover the replacements. So tonight I'm back to pick up my car, with no repairs done to it at all. Hopefully once I get to a person who can actually resolve my issues, the reason will stand out and they'll stand by their product and fix the defective parts in my car. Then I'll make ANOTHER appointment to get the windows fixed and hopefully have it taken care of. Fortunately I'm in a position where it's not a critical problem that "must be fixed now", so I can fight until the bitter end if necessary. I'll say one thing, the longer and more trouble it takes to get this resolved, the less I'll be looking at buying another Nissan.