"I want to go to rehab to sort this problem out."
Simpson pleaded not guilty to the charge of breaching probation.
"I had a bad farming accident on the West Coast, I was in hospital the whole time," he said.
"I had to give up my job because of these people, they're not allowing me to live."
Judge Chris Sygrove ordered Simpson back to Whanganui District Court on July 25 for a pre-sentence report and noted that he was also due in Palmerston North District Court on May 7.
The judge said Simpson should keep a civil head when visiting probation later in the day.
"If you've got good evidence that you were in hospital, then that's something you might be able to sort out with probation today," he said.
"And if you're hooked on methamphetamine, rehab is a good place for you to go."