That decision will now cost the man, with the Gold Coast Bulletin reporting he has been hit with a fine.
Tampering with shark nets is an offence in Queensland that can attract hefty fines. So too is deliberately coming in close proximity to a whale.
"I'm in trouble," Django, who didn't give his last name, told 7 News. "It was an expensive day, but whatever. There are laws. They (fisheries officials) do a good job. It is what it is.
"I thought most people would have done it. You just got to pay the price sometimes."
Sunrise was at the beach as the drama unfolded and reported that the man leapt into the water from his boat and freed the young mammal from the net.
"We saw a small dingy with canopy and a sole occupant about 200m from the headland," a witness told the Gold Coast Bulletin.
"The whale appears to be free now but then a larger boat has turned up."
The whale's condition isn't known. It swam away after being freed.
Despite the man's claim that he was fined, Fisheries Minister Mark Furner said the man wouldn't be punished for his good deed.
"I encourage people to allow the professionals to do their job and make sure they release any marine life that may be unfortunately caught up in this equipment," Furner said.
"It is dangerous equipment, we have obviously seen loss of life of people themselves being entangled."
James Kable, who spotted the whale with his drone, said the mammal was "very distressed, trying to breathe, just on the surface".
"I got up here for a bit of a sunrise with the surfers and flew out over the nets and saw what looked like a really large mass down there," Mr Kable told Sunrise.
"Which is very unusual. Obviously the nets are normally quite straight and often very hard to see, and I noticed that there was what looks to be quite a small whale – so it could be a baby, I'm not sure."
A SeaWorld spokesman told the Bulletin: "At this stage boating and fisheries will be managing the rescue effort. Our team are on standby should they need assistance."
Since the story has been shared, a fundraising page has attracted more than $8300 in donations from more than 350 Aussies, who say Django is "a legend in the eyes of the local community".
A spokesperson for GoFundMe told news.com.au the fundraiser has been raising money "quickly".
The fundraiser is aiming to cover the cost of the fine, which it reports could be anywhere between $1300 and $55,000.
People donating called Django "courageous", saying without him the calf "surely would have died".