His wife Nicky MacGregor said he had only just “popped out” when the incident happened in Stevenage.
Mrs Macregor said: “I, our children and family are totally devastated that Stewart is no longer with us.
“He was a loving husband, son, brother, dad, uncle and friend, our lives will never be the same without him. He was such a caring, loving person.
“I am totally devastated that I won’t ever see him again, he had only popped out to see if the petrol garage had fuel.”
READ MORE: Campaigners push for ‘death trap’ e-scooters to be legalised