Repeated disqualified driving offences - where there are more than two previous convictions - carry heavier penalties.
Defence counsel Todd Nicholls asked for Freeman to be remanded on bail pending his sentencing which has been set for May 25.
Judge Couch said: "I have never in 17 years seen a torrent of offending like this in such a short space of time."
On June 30 last year the court disqualified Freeman from driving for 6 months.
Near the end of that period, on December 8, the police tried to stop him on Quinns Rd, Christchurch, but he accelerated away at speed when the patrol car switched on its flashing lights.
Once he was caught, it looks like the police checked his bank card records and then went to the service stations where his bank card had been used, which gave them the dates and times of his visits.
The forecourt cameras showed him making repeated visits to fill up his BMW. The police laid 22 charges based on the bank records, but only a few days ago they had to withdraw 12 of those because the service station photographic records for the older visits had already been deleted.
Photographs showing him making 10 visits remained and were handed to his lawyer, and Freeman pleaded guilty to those charges.
He said he thought the police had "stalked" him to get the evidence, but Judge Couch was never going to accept his assertion that it was minor offending.
Nicholls said Freeman had fulltime work, which would be put at risk if he were remanded in custody pending sentencing. "The job gives him a belief in himself and doing something good for the world. I don't believe imprisonment is by any means certain," he said. He suggested Freeman had a driving addiction, and could seek help through AA.
"This is not minor offending," said Judge Couch. "Each charge carries a maximum penalty of two years' imprisonment. The starting point could be three or four years' imprisonment. You are in very serious trouble here."
He said that although he was granting bail for sentencing, and was asking for a pre-sentence report that will also cover Freeman's suitability for home detention, it was not an indication that he would not be jailed.
The police have also raised the question of confiscating the car involved in all the offending.
