The NASA report may protect you, if you can demonstrate that any incursion
was inadvertent. The typical course is that you might get a call form the
FSDO in around a week or so as part of the initial investigation.

There are two possible responses- you did not do what they assert, or you
can admit guilt. You should know that if you admit anything, it can be used
against you in an administrative action. In other words, Miranda somehow
doesn't apply.

So, if you're the honest type and say- yes, I did enter the bravo by
mistake, your statement can be used against you, with possible actions like
suspensions, revocations, remedial training, etc as a result.

I suspect that unless the guys at the bravo tracon had nothing better to do,
the matter will never go anywhere. Besides, how would they get your N
number? How did they know it was you who was flying the plane? They would
have a lot of paperwork and a big case to prove (unless you admit you did
something over the phone).

So, go ahead and file the NASA report, but it will likely not come to mean
anything.

Good luck.