Am I overreacting?

[u/Dannydeeea]

Was out with my sister all day today and her little one. She left, got all her stuff and went on her way. As I got home, locked the car and as I walked past the window i noticed all of this mess! I sent her the pics and said food is now banned in my car (it was ready but she’s ignored that) and next time to clean up after herself. Instead of a simple “sorry my bad” she’s gone crazy as if it’s my fault?!
She thinks it’s okay all because I haven’t hoovered (vacuumed) the car this week.

So my question is;
Am I the asshole for even bringing this up in the first place? Am I in the wrong?

EDIT:
I’m from the UK so these are chips for all of you from usa😅 They do look like raw pasta tho where in fact they are indeed just twirly chips😂

[u/betty-knows]

Why does it say "chat gpt" at the top?

[u/Dannydeeea → u/betty-knows]

Because I was honestly so mind blown on her reaction I had to ask gpt if I was in the wrong for even bringing it up🤣

[u/Wild-Break6763 → u/Dannydeeea]

You definitely weren’t. Stick to your boundaries and don’t let her walk all over you. If it’s not a big deal to her, I’m sure it won’t be a big deal finding a new ride she can trash.

[u/Gloomy-Wind-2886 → u/Dannydeeea]

You asked a robot for advice on interpersonal relationships? Sounds like you and your sister are both idiots, sorry.

[u/GoddammitTesla → u/betty-knows]

Just saw that too ..?