Ah, the modern age: all those chargers plugged in..... A number of locals did the across NC tour some years back when it rained essentially every day, lots of bail outs on that tour.
It is one thing to ride 50-70 miles in 72-95F temps, another to huddle in a tent at 75-80F temps at night after spending the rest of the off bike day at 90+
temps, even in the shade. I see Bubba has a half gallon rehydration canister next to him.