HOW TO: Quark Mod / LSP Conversion *PIC OVERLOAD WARNING*

BAD news..
with all the problems w/ that battery pack.. after my last run (the park video), I hadn't touched the packs until tonight, when I hooked up the balancers, to balance before re-charging them..
one was in balance immediately, while the other (same pack I've had problems w/) blinked "check/err"..
just checked voltages, and they were:
3.7
3.7
3.7
1.8
3.7

:'(
I'm writing up an email right now to True-RC, and see what they can do to replace the bad cell. I'm going on vacation tommorow, which sucks because I was hoping to take the truck up with me, and also, I'll have to wait till I'm back to even send the pack in. Now, the cells at 1.8v, I'm not sure if it's still dropping, or if it has been 1.8v since the last time I ran it.. if I'm gone for a few days, what are the odds that something will happen to the pack? it's been sitting for 3 days now, and there's no puffing or anything like that.. I'm just worried, if it's slowly dropping voltage that something could happen to the pack while I'm away?
just put it in a firesafe, and hope it's ok?