Exactly what I did Squark, what i wanted to check was if I can get into any trouble by NOT reporting.
Get some sleep, you are obviously still tired from the weekend.
For future reference; Motorists on their way from Coles to their house are not required to report aviation incidents to the ATSB or CASA. I'm sure that's in the CAO's somewhere
If you witness a crime on the other hand, call Crime Stoppers on 1800 333 000.
BTW since I've been sailing since age 9, I can judge wind speed and direction pretty well.
I presume there was a dam nearby then.