Been hoisted by his own petard

http://www.sbs.com.au/news/article/2016/03/17/family-deported-cambodian-australian-desperate

"The parents of a deported Cambodian man are pleading for the federal government to allow him to return to Australia for cancer treatment.
Hong Ung is homeless in Phnom Penh and says he is suffering from prostate cancer.
But with a growing number of cases like his, questions are being raised over whether immigrants who commit crimes should be deported.
At age 10, Hong Ung was a refugee granted safehaven in Australia.
Now, 35 years later, he has been deported back to Cambodia and is sleeping on the streets.
To him, Cambodia is a foreign country.
He says he has no language, no identification card - and because of that - no job.
"I've been staying in Australia for a long, long time, you see. I came to be like an Aussie, you know?"
The young Ung and his family had fled Cambodia's Khmer Rouge killing fields, where as many as two million people may have been murdered.
He grew up in western Sydney, but, by age 19, he had been jailed for break and enter, drug offences and extortion.
He openly admits to what he did.
"I think I made a mistake. I've been a bad boy. I was like a gangster and all that, and, suddenly, I got deported."
His crimes aside, Hong Ung made another critical mistake -- he did not exercise his right to turn his permanent residency visa into Australian citizenship.
His parents blame themselves.
Without citizenship, and as a criminal, Mr Ung had his visa cancelled.
His father, Yang Sen Lu, says, every day, he prays for his son to come home.
"My son is alone in a foreign place. Please let him come home. He's all alone, and we miss him so much. We just want him to come home."
To make matters worse, Mr Ung has been diagnosed with prostate cancer.
His mother, Qin Ming Huang, is desperate to get him back to Australia for treatment.
"He needs medicine. Without money, he can't get treatment. We don't want to be a burden on government. If he's allowed to come home, we can take care of our son ourselves in Australia."
The question at the centre of the debate, regarding her son's deportation, is whether it is right to deport a person permanently to a country that person has never known.
Hong Ung's lawyer, Ray Turner, says no.
"If you grow up in Australia, and you effectively become an Australian, you should not be deported."
But the Victims of Crime Assistance League's Howard Brown says he disagrees.
"Being given residency in Australia is a privilege, and, with privilege, come responsibilities. He has completely abrogated his responsibilities by committing all the offences that he has. So as far as we're concerned, he's been hoisted by his own petard."* .................."

Is the idiom "been hoisted by his own petard" used properly in that story?