Firstly I hope you don't get deported.
As a general rule I don't think they'd freeze someone's assets in a deportation order. If you're in-land and not an imminent risk (i.e. a violent criminal at risk of offending again and are incarcerated), then they'd give you a departure order, which takes 30 days to take effect and so you'd have time to sort out your affairs. I think when it comes to freezing bank accounts, they'd need a warrant to do that based on some type of evidence that you're committing wire fraud, which is clearly not the case here.
What matters here is you needed the will power here to fight this DUI all the way to ensure it protects your residency.