Do you think it is wrong to use a dead person's frozen embryo?

My friend was in a car accident and she's currently in the hospital. She had frozen 6 embryos from when she was trying to have a baby with her late husband. She is now engaged to someone else and she is debating on whether or not she should use one of her husband's embryos. I think it would be morally wrong to do so but I would like to hear other opinions.