No message. CID said "Wilmer TX"

Caller ID showed "Unknown Name" and they left no message.

Got a call on 02/10/2016 at 5:30pm.  CID said Wilmer, TX.  I did not answer, no message left.  Will put on block caller list, as I do not know anyone from Wilmer, TX - I figure it is a scam call of some type.

I sometimes answer just too give a piece of my mind.  I did so this time, caller said he was with Chevrolet and was calling about the extended warranty on a Chevrolet I own and was I aware the warranty had expired?  He said they had sent several notices to my address (which he rattled off) then asked if I had received them.  I confirmed I had received some junk mail about extending my warranty and that I shred that kind of crap.  Then I asked if he was WITH GM/Chevrolet, which he assured me he was (this from a local number)......I told him if that was the case, he could email me and his return address would be from the GM/Chevrolet server....right?  he said yes, then hung up.

Caller tried to sell us an extended warranty on our vehicle.  He was very rude and aggressive.  We're on the Do Not Call list and I've reported the call.