Not to belabor this point, but I knew I had seen a question in the book that addressed the original question (which I assume was asked for "what if" in a life and death situation). As Dave points out though actually being able to transmit may be an issue.
Test question T8B08, covered on pg 4-24
FCC 97.403, 97.405(a),(b)
Bottom line on doing anything like this, assuming it worked, is that you better make sure it is an emergency or be prepared to pay some serious consequences!
Jeff Z. (the "not quite as skinny" one)
'97 LX450 - aka "The Whale"
'97 FZJ80 Antique Sage AE #267, stock
12/74 FJ40, 2F, SM420, 4" Lift, ARBs, 33" MTRs
"...anything else i can do for you guys, how about i wash your car or mow your lawn while you figure out your firewall system? I am now boarderline insane/unibomber." Kipper
"That assumes I'm even capable of pulling and stabbing..." Jacket
"I really like having a detachable unit." Beater