Has anyone tried using an RFID scanner or pet chip scanner where they’ve gotten their COVID shot?

This sounds absolutely nutty and is completely third hand info from a family member, so it could be completely bunk. That out of the way, my family member has a coworker I’ll call Pat that they trust to not make stories up. Pat took their pet in to the vet and the vet scanned their pet with a chip scanner. Pat then asked the vet to try scanning their arm. The right arm didn’t produce any results, but when Pat’s left arm was scanned, a number showed up on the scanner. Pat’s mother was with her and also got her left arm scanned and another number showed up for her. This was supposedly tried a few times with a control right arm vs the left arm that got the shot.

I can’t confirm this story personally, so this is more of a request for other people to test it and please report back. I know it seriously sounds too crazy to be true, but it would be a huge red pill if it is.