First of all, after the somewhat traumatic experience of being "ripped" out of the door, the most important thing you should do is leave the RTB in its tank for at least a week. It needs to settle down a bit. It's probably stressed an agitated after that experience. The aggressiveness should ease off a little by simply being left alone.

Next, leave your snakes at home. Don't be joy riding in the car with your snakes. Many people freak when they see a snake in public so do everyone in the reptile community and your snake a favor by leaving it at home.

And a juvie snake like you've got should be fed about once every 7 days--Not every 3 weeks.

I don't mean to come off snippy, but this could have been avoided if you would have left your snake at home rather than bringing it around with you in public.