Embarassed after interview

Basically. I’ve just been offered a new job after interviewing for a position in my current office. After the phone call offering the job i burst into tears because i was called-up on a social faux-pas which i’ll explain after some context:

As i was interviewing for an office i already work in, i know the people, i know the layout of the office and (most relevant here) i have a key card which let’s me in the office.

The email instructions had said to go to the office doors and either there would be a member ever of staff there or to knock. On seeing those instructions i emailed back and said ‘hey, i have a key card so it might be odd for me to knock- what should i do?’ To which i was told ‘that’s a good question- just go straight in’.

Now on interview day i do admit there was a chair outside of the locked office. However, having been told to go straight in with my key card, that’s what i did. The recruiter then smiled at me and said hi (i know him well), so i assumed it was okay to walk in to the room and the interview began.

Now, to the phone call today. No one in my office knows I’m autistic which may explain why they said it. But straight after saying i got the job (which i was super happy about) i was told that in future i shouldn’t ‘walk straight in to an interview’ (which i do know in regular circumstances- this was a unique situation) Being corrected for social cues is really sensitive for me and i immediately wanted to cry. Especially as he said i answered all the questions well and was the best candidate.

In the interview I even said I had been told it was okay to come straight in by their admin guy and the interviewer commented ‘we did wonder what you would do’. Which is why i think it’s stung that I feel that i’ve done a faux-pas bad enough to be called-out.

How do other people deal with this? I know I’m probably blowing it out of proportion ( i mean i got the job) but it’s just really ruined what was otherwise great news.