I know it's a pain, but personally I'd repin it. I'm a little bit perfectionistic about those things, and that's just me.
I've repinned so many times that I measure measure measure that first row of pins, and every couple rows after that.
Find some TV program that you want to watch and slowly unpin as you are enjoying some interesting program. It will be done before you know it. I usually try for a comedy show.
amh