A number of things do not add up. First, the business named, Reliable Auto Sales is not in Syracuse, it's in Auburn some 30 miles away. They do sell some collector type cars there, but I don't see this one on their FB site.
Next is the address... 544 E Genesee St in Syracuse is an office/medical building not far out of downtown Syracuse. I think I had a root canal done there years ago. LOL
I looked at his FB profile and I see Auburn mentioned... There is a 544 Genesee St in Auburn, in fact not far from where I bought my 300L. No car dealer there.
I think I recognize the guy though... I seem to remember him showing up at a cars and coffee a couple years ago in some sort of exotic car. Basically a poser that liked attention, but I think he was friendly.
I may go with the "bamboozled" theory.... The seller I talked to in 2018 was not exactly someone I would trust to tell the truth. He told me he taught Salsa dancing... LOL. He had someone helping him sell the car. When I saw the car at the car show, I mentioned I looked at it in 2018 and thought the new owner was this guy's helper, but he said it wasn't him. I kinda think it was though and he wasn't being honest. The car sat on the side of the road in Marietta before that and that's not far from Marcellus where the show was.