How to handle controlling parents who won't let you take trips?

I am a recent grad, I have money saved up and I'm applying for jobs, and will soon get my own place. I am taking the bus to see them in town. I didn't ask for permission I just told them where I am going and they caused a big scene in the house and threatened to disown me.

Updates
9 mo
To see my college friends out of town.
How to handle controlling parents who won't let you take trips?
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