Tejero, despite all his comic looks was not a particular comic figure. he was a senior Guardia officer. He told the MP's that they should just sit still and an "important military figure" would be addressing them shortly. The communist MP feared they would be dragged outside and shot, just like the 1930's.
Nobody has ever found out who it was, but it could have ben the King, Juan Carlos.
Franco, btw, called poor Juan Carlos "Juan the Brief". Apparantly, Juan Carlos did not believe it was great fun, wonder why.
It could have been Franco again, at least the "democracy" reforms Franco believed in.
The Tejero coup is and was murky. I am busy on book #2, which has a coup in Spain as a parallel plot. It reaches back to the early Franco days and also to the Tejero coup. That part of Spanish history is full of all ingredients which not even Clancy could conjure up.
Ivan