What Frazier likely didn't know when Bugliosi asked his leading question is that in order for a 34.8 inch object to not be sticking up over his shoulder, it would have to be sticking out in front of him at a 45 degree angle. Pretty hard to open a door that way.
Also, Frazier wasn't behind Oswald when he saw him put it up under his arm:
Mr. FRAZIER - He got out of the car and he was wearing the jacket that has the big sleeves in them and he put the package that he had, you know, that he told me was curtain rods up under his arm, you know, and so he walked down behind the car and standing over there at the end of the cyclone fence waiting for me to get out of the car, and so quick as I cut the engine off and started out of the car, shut the door just as I was starting out just like getting out of the car, he started walking off and so I followed him in.
Also, what is the evidence that the CE139 rifle was disassembled and reassembled? Or ever inside the CE142 bag that you can't even demonstrate was ever in the alleged "dotted-line" location.