Does this seem rude? (MIL issues)

So my whole pregnancy like many of you my MIL has tried to live through my pregnancy. Constantly wanting to see my belly, wanting to be updated at every appointment, buying everything for the baby and not even showing us or asking us if we liked it. She also claimed she wanted us to live with her so she can wake up with the baby every two hours and feed her and take care of her. I know grandparents are super excited for their first grandchild but this has been a little obsessive. She has never been a big fan of me. Sometimes she’ll be friendly with me but for the most part she hates that I took her son away from her. A few weeks ago my fiancé and her got in a fight about us moving back to Ohio. She hates Ohio and said she’d never come visit us and would cut us off just for living there. She also thinks I’m making us move because it would be closer to my mother who she also hates. She said since we where moving she’s gonna take back everything she bought for the baby (the only things I wanted she bought where the car seat and the boppy pillow). She claims if she took everything back we wouldn’t have anything for the baby and my family wouldn’t help us (which they have). So because she claimed she’s taking everything back and won’t talk to us unless it’s through my fiancé’s father we bought our own car seat. Tonight his father text him and says so “how are we gonna get you all this stuff? You better not have bought a car seat or asked anyone for one because your mother picked out her favorite car seat and matching cover.” Like oh good for her she bought the car seat SHE likes. We got one WE like and picked out together as her parents. Kindly my boyfriend responded “we did buy a car seat because mom claimed she was taking every back, and wasn’t contacting us when we asked about her sending it to us. We appreciate everything you bought but didn’t want to have any more issues.” He responded if we want any of the stuff we need to drive all the way to California which is a five hour drive to get any of it. Like wtf I’m gonna be 38 weeks pregnant I can’t just go out of town and two they know my car is not a long distance car. Was this wrong of us to buy our own stuff because of what they said?