The Nazis had a lot of help escaping by design:
https:// www.theguardian.com/world/2011/may/25/nazis-escaped-on-red-cross-documents
http:// www.dailymail.co.uk/news/article-2099282/How-Nazi-used-ratline-escape-route-flee-South-America-war-daughter-woman-seduced.html
The Red Cross and The Vatican for starters