Indeed, so why did you write earlier;
After the event he realised it was a rifle and that no-one would buy his "But I thought it was curtain rods" excuse.
If, as you claim, Frazier thought no-one would buy the curtain rods story, then why would he still tell it and not come up with something else?
How does Frazier know so soon that the shots were fired from the TSBD? Btw he testified that he thought they came from the railroad area.
How and when did Frazier find out Oswald was arrested and for what?
This is all hindsight not supported by the facts or evidence
In their report, Rose, Stovall and Adamcik gave a later time.
Only if he had all the information at that time, which he clearly couldn't have. Oswald was arrested after Frazier left the TSBD. The first broadcast of his arrest was at 2:40 only mentioned that he was arrested in connection with the murder of officer Tippit.
It's highly speculative to assume that Frazier, between his departure from the TSBD and his arrest at the hospital, would somehow have obtained sufficient information to tie Oswald to the Kennedy murder and draw the conclusions you propose. But even if he did, why did he still tell the curtain rods story?
It's also possible that Frazier wasn't aware of any problem until he was arrested. Speculation isn't getting you far!
You seem to be deliberately complicating the scenario I'm proposing.
The scenario, which is obviously speculation, is meant to account for as many factors as possible relating to the curtain rod affair.
The point is that Frazier only alters one aspect of what actually happened - the size of the bag. That's all.
Everything else happened as he testified.
1) Oswald asks to be dropped off on Thursday evening to collect some curtain rods:
BWF didn't know there were curtain rods in the Paine garage, that's why he couldn't have made up the curtain rod story. Oswald did know they were in there which is why he made the story up. To have cover for the long package he was bringing to work.
And there
was 2 curtain rods in the garage. Ruth Paine had put them there herself.
Oswald didn't need curtain rods. He had perfectly functioning curtain rods in his room.
He never mentioned to his landlady he was going to change the curtain rods.
He never mentioned to Ruth Paine he was going to take the curtain rods.
The only person he mentioned curtain rods to was Frazier.
And the 2 curtain rods were still there after the assassination. Because Oswald never took them.
2) Oswald shows up the next morning with a long package:
In the long package is the rifle Marina testified to seeing in the tied-up blanket in the garage which was no longer there when the police searched the garage later that day.
BWF asks what the package is and Oswald reminds him of the curtain rods.
BWF has absolutely no reason to doubt him and accepts the story.
After the assassination there is a roll call in the TSBD after which BWF returns home.
Frazier is adamant he was in the hospital only a short time (15 - 20 mins at the most) before he was arrested.
Let's say it takes 15 mins to drive from the house he was staying to where his step-dad was (probably shorter)
In the report I posted we can assume BWF was arrested approximately 5:30pm which means he could have been in his house
until as late as 4:45pm watching events unfold on the TV. It's possible he saw the police activity at the Paine house before heading off.
As you point out, Rose and Stovall place his arrest later in the day which means he could have left the house even later.
By 4:45pm anyone watching the TV knows that the shots that killed JFK came from the TSBD and that Oswald, a TSBD employee, had been arrested.
Buell realises that the long package contained a rifle and not curtain rods.
He realises that he has been duped.
He realises that, through no fault of his own, he is an accomplice in the murder of the President.
He realises that if he describes the package he actually saw no-one will believe he thought they were curtain rods.
He can't say there was no package because if he gets caught out blatantly lying he will be in real trouble.
All he can do is diminish the size of the package and make out he never really paid any attention to it as Oswald explained they were curtain rods.
He's done nothing wrong.
Oswald denies bringing curtain rods with him because he knows they are still back at the garage.