Representing himself after pleading guilty to one count of drug-driving on a learner, probationary or provisional licence, Ponturo told the court he had secured a new roofing job in Rockhampton and had not touched meth since December.
Magistrate James Morton warned Ponturo he was considering sending him to jail.
Mr Morton said a fine would send the wrong message given his history and probation was more suited to younger offenders.
"It's never a good thing to send someone to jail, especially not a mature age man who's trying to struggle and get by in life," Mr Morton said.
"You go to jail, you're in there with the rapists, murderers and the paedophiles."