Have you got a recording of those interrogations or do we just take their word for it?
Nope. But given that there is no account by
anybody ever that Oswald was out front during the motorcade, or that he ever
said he was out front during the motorcade, then what reason would anybody have for believing that he was?
Yeah, I know. That distinctive hairline.
But your gotcha attempt is another one of your many failures. Pointing out that the after-the-fact memories of the interrogations are unreliable (and they are) doesn't somehow become positive evidence that Oswald was out front during the motorcade. All it shows is that we don't know for sure exactly what was said.