Separation of powers distinguishes that courts should manage legal proceedings independently of the parliament.
Given how overcrowded and stretched our prison system in QLD currently is, he won't do jail time. For reference, I work in forensic mental health. I have repeat offenders who engage in far more heinous crimes than driving offences (think crimes against children etc) who repeatedly get diverted away from prison by the courts.
Of course, I could be wrong, but it's likely he'll get a community correction order (CCO), fine, disqualified license, and forced to engage in diversionary pathways such AOD counselling and community service. Worst case scenario for Ezra would probably be an intensive correction order.
The fact that Ezra has the means and money to 'rehabilitate' himself will also play a part - people may not agree with this, but it's cheaper for Ezra to pay for rehab than what it is for the state to lock him up. Any civil case will also be dependent on his earnings - he can't compensate anyone if he has no income.
And before anyone jumps down my throat, no, I am not dismissing or downplaying the severity of what Ezra's done - just giving context of the realities of our correctional system.