Michael had been working two hours away in Fraserburgh when his wife, Dinara, called to say her waters had broken. He dashed home, only to find that her contractions were intensifying quickly.
After arranging for his mother to look after their daughter Beth, Michael set off for the maternity hospital in Aberdeen - but they soon realised that they weren't going to make it there in time.
Michael phoned the hospital to ask what to do and was told to pull over somewhere safe and call 999.
Reflecting on the experience, Michael said: "I saw the bright lights of the Asda car park and thought it would be perfect spot as the ambulance would find its way to it quite easily."
The call handler talked him through what to do and in no time, Dinara had given birth to 9lb 2oz William in the reclined front passenger seat.
Michael said: "It was a wee bit scary, but it was okay. The guy on the phone told us what to do; he was great."
They wrapped William in a jumper and kept the engine running to keep him warm while waiting for the ambulance, which arrived within five minutes. Dinara and William were taken to the hospital, with Michael following behind.
Michael added: "William went three days in hospital without a name. We did consider George because of the Asda connection but we went with William in the end!"
When store manager Linda found out about William's unexpected arrival, she took a bouquet of flowers to their home and then invited the family to the store so she could give them a hamper full of baby goodies.
Linda Morrison, General Store Manager, Asda Huntly said: "We just wanted to do something a bit special ... it's not every day that a baby's born in your car park. William was just beautiful, and he was giving me smiles. I was delighted to meet them."