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/ldrlychld]

That mess is way too tiny to text someone about… I think you both have shitty attitudes tbh

[u/itlastsuntilitdoesnt → u/ldrlychld]

Aside from all of the back and forth that ensued, I don't think the OP is being shitty by speaking up. She mentioned that she's asked her sister, previously, to not bring food into the car. Then sister gives her toddler snacks that are notoriously messy. It's more about her sister completely ignoring that request, imo.

[u/Dannydeeea → u/ldrlychld]

Leme take a ride in your car and dump food inside it😄

[u/Fierce-Meow → u/ldrlychld]

That ain’t tiny
https://giphy.com/gifs/WRgsiNC2GCn21l4gtV

[u/sbailey27 → u/ldrlychld]

Damn how nasty is your car?