Keep your heads down, the pair of you.
Try to let the emotions subside a little. Be careful your own mother doesn't try and "set you up" with a second witness.
That.
Just get on with your life, try not to get involved in any discussions on the matter.
Hopefully time will smooth over you family's perceived hurt and they will come round.
But, if they don't that's up to them, try not to worry about the things you can't change.
Good luck!