Even if Rusty managed to get his driver's license, how did he afford a car? He can't keep a job or an apartment, just got turned down as a renter due to some combination of bad credit and stalking charges, has a loveseat from goodwill because he couldn't afford a couch, and had to have mommy and daddy pay for his legal defense. This doesn't make sense and goes against everything we know about Russell.
Speaking of mommy and daddy, though, funny how the last time we saw that car was during the criminal trial.