With all eyes on the charge sheet on Monday morning, Walsh was handed $4800 in fines following his wild and ultimately triumphant afternoon in Canberra.
Fresh off one of the greatest individual comebacks in finals history, Walsh copped a $3000 fine for a grade-one striking charge for his headbutt of Hudson Young.
He was also handed an $1800 sanction for sticking his finger up at the Raiders' crowd, after being sin-binned for the headbutt in the second half.
But the Broncos No.1 will consider that money well spent, given he embraced the hate and engineered Brisbane's fightback from 28-12 down with 14 minutes left.
Had Walsh been handed a grade-two striking charge, as he was for headbutting Jarome Luai in State of Origin in 2023, he would have been rubbed out for the season.
But the NRL has instead opted for the lesser penalty, in a decision that is likely to prompt week-long debate across the game.
Canberra coach Ricky Stuart was adamant on Sunday night that Walsh should have been sent off, claiming match officials had set a precedent that players are now allowed to headbutt.
The Raiders were also seething that Young was sin-binned alongside Walsh, accused of provoking the 23-year-old by celebrating in his face.
Broncos players did their best to play down the incident after fulltime, with coach Michael Maguire claiming it was simply two players having a "conversation".
The Broncos do, however, have a big decision to make on Carrigan, after spending Monday reviewing his grade-two careless high tackle charge for a hit on Morgan Smithies.
The Brisbane captain will miss the preliminary final against either Canterbury or Penrith, unless he fights to downgrade the charge and is cleared at the judiciary.
But that would be a significant gamble, given if Carrigan is unsuccessful in his case another week would be added to the ban and he would miss a possible grand final.
The scenario comes just seven days after NRL CEO Andrew Abdo conceded players should feel free to fight charges without such a penalty hanging over their head.
Abdo last week vowed to review the current process, which saw just 12 of 257 charges challenged in the regular season this year.
Even still, Brisbane will end Monday relieved at their current situation given Walsh's importance to the team.
The fullback's return from a knee injury in June reinvigorated the Broncos' faltering season, with Brisbane having won nine of 11 since then.
Nowhere was that more evident than on Sunday afternoon, with Walsh returning from the sin-bin to score a try, set up another and kick a 40-20 in the lead up to a third as Brisbane mounted their comeback.
Making the situation all the more remarkable was that at one stage Brisbane were down to 11 men, with Carrigan alongside Walsh in the bin.
"He's just such a special player," Ben Hunt, who nailed the match-deciding field goal, said of Walsh.
"Kicking 40-20s, setting up tries, kicking goals; he loves it.
"He's a real student of the game. He works extremely hard at his craft. I'm just happy that he's putting it all together."
Meanwhile Canberra second-rower Zac Hosking was also fined $1000 for taking out Walsh's leg as the Broncos No.1 attempted a last-minute field goal.
Any ban would have rubbed salt into the wound for Hosking, given it was that penalty that allowed Brisbane to level the scores after the siren and send the game to extra time.
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