Sure. But he had the wrong hair and glasses etc. It feels like one of these things a scammer would think about, assuming the scammers are not incompetent.

Imagine the opposing side write up of this. Note that HR did not confront him with allegations of fraud.

"My boss is staring at me with a confused look. My smalltalk about my family made him leave the room hastely. Lawers are lurking around in the hallway. They starts to question my competence after just one week. Is this place a joke? Did they hire me to fill a fire quota?"