I was on the ride too, but I bet our paths never crossed
Correction: we must have come close at the finish in Perth. Because I went home from M.River I went in to see if I could lend a hand on Saturday and I did see the first riders arrive.
Soon after that I relocated with a fluoro vest to the turnoff of the Narrows Bridge, to direct riders back to the river - in an area where even the locals get lost regularly.
I spent the rest of the day arm waving, it was fun. And lots of people saying 'thank you' - they didn't know I was a pretend Vollie - really nice. I even got a hug from someone. And a banana.
Only frustrations there the conviction that I could/should have been replaced by a couple of signs instead, and not getting any lunch
Someone did take over for a while so I could ride to the nearest toilet