Oh this just came to me. You only go over your dads every other weekend?

You give it water every other weekend? LOL?

What if your heating devise messes up and goes all crazy? Its just going to burn your snake for 2 weeks before you notice it?

You know what ill say this from experience. Let me tell a little story.

I used to live with my mom and dad when i was little. I had a ball python. I was an ok owner. Didnt know much about how to take care of them. He had a heating lamp. Didnt watch humidity. But was always fed right. I could of taken care of him a bit better. I didnt know better tho.

Well my parents split up. I went to live with my dad. My snake stayed at my moms. Like you i only went over there every other weekend. Well... My mom would not do anything with it. So like you i had to feed every 2 weeks. She would pour water in through the top screen.

Well one weekend i went over there was poop in cage had been sitting i there like a week and a half. And the light was out. He was freezing. I was so mad at my mom for not checking it. Well she told me i had to get rid of it, i was so mad. This was about 11 years ago. Now i think back on it and it was by far the best decision. I was not caring for my snake for my own personal satisfaction to have him every other weekend.

Thats my story Not sure if your dad cares for him while ur there or not.