if the boss in the back instructs to hold for an hour and hope for an improvement, that's what you do! I once flew a London-Stockholm Bromma only to find the airport closed due to very heavy snowfall. Pax did not want to proceed to the alternate, Arlanda, because the trains were not running either and they would never make their meeting by landing there.
We entered the hold for some 30 mins and then the message from the boss was to fly back to London as their meeting just got cancelled (due to the wx conditions on the road). As we tankered fuel out of London, there was plenty of it for the return.