At what point in minutes does the scoreline stay as what it is when you called it off?
I haven't spotted any reference to abandoned games in the Knock-Out Cup regs on the NZ Football website, but generally it is 60 minutes with governing body discretion to order it be replayed. eg see this thread:
https://www.yellowfever.co.nz/forum/forum_posts.asp?TID=15306&PN=11