I would share my feelings about the diagnosis with the shrink and ask for clarification re: why she thinks this is autism vs. poor executive functioning. I would ask how the treatment of your problem (the exec function/disorganization etc) would change based on diagnosing one vs the other. If her answers aren't satisfactory, I'd get a second opinion.

I am not suggesting this will be your experience and I have no diagnosis of any sort, but I found that as I grew older, I came to realize that I actually do have social issues. I didn't know what I was missing because I didn't know what was 'normal', if that makes sense. Like, if everyone in the office was getting together to eat lunch, I would still go out for my lunch time walk.

If it would be possible to ask the employer who made the missing social cues comment exactly what they meant, it could be interesting.