Asked her not to bring her dog, and this is her response

I asked my husband's grandmother not to bring her dog to my house because last time she brought her dog here her dog went after my dog. This is her response

So she is blatantly missing her grandsons birthday and has asked for her car back, which she has every right to do, it is her car after all. But now my husband is mad at me because I just "lost him his wheels." My car just recently got backed into it is not drivable. Waiting on getting it inspected but that's another story. So who's in the wrong here?

Edit:

I want to clear some things up. I asked my husband to text his grandmother and ask her not to bring her dog "lady" to the house because last few times the dog bolted from their truck and attacked my dog. Mind you her dog is a pit bull and my dog is a toy terrier (spaz). They laughed it off and said her dog was just playing. So my dog was made scared and uncomfortable in his own home and yard more than once. I asked my husband to ask her not to bring her dog. He got pissed off because he knew exactly how she would react and refused to text her. She has a higher than thou mentality and you can't tell her what to do. So I began to text her when my husband grabbed my phone and typed the message which was sent. She Asked for her car back. That's not what pissed me off, but is what pissed my husband off because "my stupid dog just lost him his wheels" . I didn't need her car. But my husband drove her car to her house, left the keys and $10 inside and walked home. As I've replied in the comments I'm blunt and to the point. My irritation came from the fact that she decided not to come to see her grandson or even call him for that matter. All because she was asked to leave her dog at home for an hour. A literal hour. She refuses to stay longer than a hour at our house. She will literally point at the clock and say "I got here at 5, I'm leaving at 6". I was irritated to say the least. But it was her loss. She definitely won't be invited to any other family gatherings in the future. She can't respect my rules she doesn't need to be here. Last thing I'd like to add is my mom has a dog she takes with her everywhere. Her dog has never been a issue here. My animals actually love her "pinky" but due to this incident I asked her to leave her dog at home and there was no complaint there.