I may be an idiot at times, at least my wife would likely agree, but fyi I haven't had this residential phone number since some time on/a Jan of 2002, if I recall correctly...and haven't lived in College Park, MD for some time.
It looks like Gary's number is being spoofed by the warranty guys. I heard somewhere that they look for a random disconnected number and then use it as their "disguise" caller ID. This is so the people being called cannot call back.
THESE people JUST WON'T QUIT!! I don't even have a CAR!!! They call my home phone & now my cell phone. Everytime they use a different fake ID so I don't even answer if it's not a # I recognize. GET on the DO NOT CALL list people! https://www.donotcall.gov/