I can't help directly with the question, but it does lead toward another side-topic.
Use of electronic means that provide evidence of a briefing is just as smart as calling AFSS these days.
The flight planning tool I use on my iPad not only stores the complete text briefing of any briefing I do, but also e-mails me a copy of the flight plan and the briefing.
Whether flying for CAP or not, these get filed in my e-mail folder for such items lest any case were to arise where someone questioned whether or not I properly prepared for any particular flight.
My W&B tool also does this.
In CAP, many of these items are captured in a typical flight release process, via CAP methods, but non-CAP and CAP alike, I keep my own electronic paper trail.