Frazier's claim is an odd story but I doubt Frazier is telling it to sell his book. I can't imagine anyone bought the book for that reason. Frazier is definitive in his WC testimony that the last time he saw Oswald that day was between 10 and 12. But maybe he thought the question was directed to Oswald's movements before the assassination. Otherwise it is difficult to reconcile his two stories. Maybe someone should ask him. Frazier does appear to entertain the possibility that Oswald is innocent. At the 6th floor museum event, he mentioned that Oswald often played on the lawn with the neighborhood kids. And because of that, Frazier concluded that he didn't think Oswald was capable of the crime because kids have some intuitive sense of people in his opinion. It was pretty silly but I'm guessing he hopes that Oswald is innocent so as not to bear any sense of historical association between himself and the crime. Arguably, there might be some cause for him to have been a little suspicious of Oswald taking an unexpected trip to the Paine home and carrying a long narrow package to work on the morning that the president was due to drive by the building. I also have some difficulty believing that there was no discussion that morning between Frazier and Oswald of the pending presidential visits. That would have been the biggest news story of the day and the motorcade would be passing their place of work. I think Frazier may have downplayed any suggestion that he should have been a little more observant that morning once he understood that he had driven the assassin and his weapon to the building. He put on the Gomer Pyle act and claimed he didn't take much notice of anything and knew "nothing" like Sgt. Schultz.
Yes, I think that Frazier’s sworn testimony cannot be reconciled with his more recent claims. In Trask’s book, he states that the location of Jim Murray’s parked car was on Houston Street near the TSBD loading dock. Murray ran to his car immediately following the shots. And he got his cameras, and after reloading one of them, he went directly to the area in front of the front door of the TSBD and began taking photos (including the one this thread concerns). So, I think that if LHO (or anyone else for that matter) had exited from the loading dock part of the TSBD that Murray would have been in a good position to observe it. As far as I know, Murray has never indicated that he saw anyone exit the loading dock area of the TSBD.