Primarily, Chong wanted to thank two girls who were there when the crash occurred and helped look after Matthew who managed to walk away from the scene "without a scratch".
"We would also like to take the time to thank two young girls, sorry don't know their names, who witnessed everything and took the time to console Matthew while Ambrose was being attended to by the paramedics."
Police this week confirmed it was likely Hughes suffered a medical event before the crash.
Hamilton man Nostalgia Tairua-Bracken, 17, was going for a walk during a break at work about 2pm when he heard car tyres screeching and a loud bang.
"I was a bit shocked after he didn't wake up. I just remember seeing them pushing on his chest. I was just waiting for him to wake up but he didn't."
A requiem Mass for Hughes will be held just metres away from where he died, at the Cathedral of the Blessed Virgin Mary, Grey St, Hamilton, on Tuesday at 10.30 am.
He will be buried at Hamilton Park Cemetery at Newstead.
The incident is still being investigated by the police serious crash unit.