Simple Past or Past Perfect

If I went to a place last night where I needed to show an id, but I forgot to have it on me. So if in the morning I was speaking to a friend(reporting on what happened), which one of the following would be correct:

I had heard that you needed an ID, but I didn't know if it was absolutely necessary

I had heard that you need an ID, but I didn't know if it was absolutely necessary.

I heard that you need an ID, but I didn't know if it was absolutely necessary.

The first one seems correct to me, but I might be wrong. Ideas?

And which one of the following should I say in the context above:

Reporting on what had happened

Reporting on what has happened

Reporting on what happened

Answer

I had heard that you needed an ID, but I didn't know if it was absolutely necessary.

This sentence is correct. It implies that you knew about the necessity of carrying an ID before the events of last night.

I had heard that you need an ID, but I didn't know if it was absolutely necessary.

This is also correct, although some people might say that the use of Present Simple with need doesn't agree with the past perspective. I believe, however, you can use it because in this place the ID is a norm and it is still valid.

I heard that you need an ID, but I didn't know if it was absolutely necessary.

This is correct but not very clear. I heard doesn't show that you knew about the ID beforehand. I prefer the previous two examples.

You are reporting what happened since you have already mentioned that these events took place last night.