Called just now, caller ID just shows "Madison, NJ" and likely is using a spoofed number. Also since my answering machine picked up and it was talking to it like it was a human, means it wasn't even a human talking! Never mind that some of the words were said in a rather awkward manner, such as "Would you like to hear your options for getting back under coverage," where it was said in a declarative manner, not a questioning one.

I have a transcript of the message in case anyone else gets this call:
"Hi, my name is Michael, and I'm calling from the Dealer Processing Department regarding your vehicle's warranty. We sent you a final warranty notice in the mail letting you know that the extended warranty on your vehicle has expired, and that this is the final courtesy call to renew the warranty before we close the file. Would you like to hear your options for getting back under coverage? [Call center noise in the background.] Hello? [Other voices in the background, call terminates.]"

Never got anything in the mail, either!