.. that you can’t play Zephyr after you played Spying Mission. While the bleed is not successful (the bleed amount was reduced to zero), the action as such was successful. And therefore by the card text of Zephyr you can’t play the card.
Basically the above is the reverse argument for the fact that you can play Freak Drive (even at basic Fortitude) after playing Spying Mission. The action is successful (even though the bleed is not), therefore you can play Freak Drive.
Reference: [LSJ 2001-02-05].