How to detach in the middle of an iTween path

I was trying to see how to get a gameObject to stop in the middle of animating on an iTween path. For example, I have a spaceship that flies along the path, but if it gets hit by a bullet, it should immediately go from flying along the path to moving to the bottom of the screen. Otherwise, continue along the path to completion, which sends it to the top of the screen. Any ideas on how I could accomplish this? Thanks.

Sorry. Never mind. I figured it out. Just used another iTween.MoveTo() function. Duh. If anyone is interested, to get iTween to work using Update(), use a timer that counts 0 to 3 after a trigger or event. Example:

void Update(){
if(timer<3){
timer+=1;
}
If(timer==1){
ItweenFunction();
} 
}
ItweenFunction(){
iTween.MoveTo(gameObject, blah, blah, blah);
}