Planet13 - 3:49 pm on Jul 4, 2013 (gmt 0)
"and if they manually look at it WITHOUT going into the code"
I am pretty sure that whatever tools google has will tell them upfront and on the table whether a link is a nofollow link or not. I seriously doubt they are going to have to be "going into the code".
This is something that EVERY third party link checking tool has and I would venture to say that the tools that google has at their disposal are more sophisticated than the third party ones out there.
On the other hand, who knows what google thinks nowadays.