I think Kennedy overruled the SS in Dallas by ordering the top down on the car against their wishes. Not sure you can blame them for his death.
True, somewhat. It was all just very convenient given so many threats directly prior to his assassination. Perhaps JFK had become nonchalant regarding the risk he faced.
Here’s the SS PR report from JFK’s trip to Miami- November 18, 1963. Also it was not filed until over a month after JFK’s death.
http://cuban-exile.com/doc_051-075/doc0066.html