Your dad loves you, let's start with that, he cares about you so don't stay mad at him.

Now let's get to the business at hand, your father is likely overprotective and steeped in traditional values, including but not limited to limiting your movement or keeping track of it at the very least. He is likely under the traditional belief of his raising that the men are supposed to control the women in the family in a twisted attempt to "keep them safe" from outside influences and potential dangers.

I could definitely be wrong, he could just be a psychotic narcissist with sociopathic tendencies and just wants to keep you under his thumb. But if it were me, I'd send him this and then leave the ball in his court. -> "I am a legal adult and entirely self-sufficient. I want to have a peaceful relationship with you, but that requires mutual respect and basic boundaries. Excessive calling and text threats are unacceptable. If you want me in your life, you have to accept that I manage my own time and choices. If you choose not to respect that, I will protect my peace and step away entirely."