If I was you, I would have immediately gone back armed with a proper digital camera and take pictures of the pot hole. I hit one not too long ago driving at 70KM/h. Damn thing snuck up on me and I hit it smack bang in the middle. Gave me a good fright like the bloody engine fell out.
Luckily no damage.
Just remember this mate, when it has been raining a lot, expect potholes, as the roads get softer they will start to deteriorate.