my room mate has an old 3G. I went swimming with my 3GS in fresh water thank god by accident....but think if i jailbreaked my buddies old 3G phone temporarily for a couple days and using my sim card in it from my 3GS, that is registered and working(was). would it screw my SIM card up when and if my 3GS maybe works again after it being in rice for a couple days??