I agree with you. I also don't see why the administration wouldn't notfy the FISA court within the 72 hours like the lasw calls for. I mean, I don't see the big deal in ordering the surveillance then going to the FISA court in the next 24-72 hrs and getting the retroactive warrant? It just appears like there's something to hide.
IMHO...I believe going to FISA within 72 hours is for "continuing" surveillance.