What to do

So my husband and I live with his bros and his mom. We pay rent for the house while his mom doesn't work and his bros don't like to contribute to the house bills unless things get cut off.

Anyway, I'm going to focus this specific post on my MIL, the rest is a different time, theres so many issues with the whole fam. But just the MIL for this post.

So my MIL and I have a language barrier, just to keep that in mind. Anywho, she doesn't drive nor work. I understand being trapped in the house all the time is irritating. I know from personal experience, I'm sure everyone does cuz of COVID. Well, almost everyday, she runs off with a specific friend that lives about 15 miles/35 mins away. She used to make one of us take her there, but recently she's been getting picked up from the friend cuz of us always being at work.

Ok no issue, right? She should be able to leave sometimes. Nah it's all the time now. And every night, past 10, sometimes past midnight, she DEMANDS someone go pick her up. The friend drops her off at a nearby UNSAFE gas station. Very nearby. But she demands to be picked up from there and not go an extra mile to be dropped off at home.

My husband and I have tried telling her multiple times that either she don't go or she plans it before hand if one of the bros can get her sometimes. But they ALL WORK in the morning, like early morning. And she gets mad and just keeps doing what she's doing.

Yes, we've tried ignoring her calls cuz the friend should be able to drop her off if no one answers. Nope. She would continue calling the youngest who can't drive and either want him to go get her or wake us up. She will call NON STOP and while we may ignore the calls the bros won't and just make us go and start fights saying me orr my husband should get her. When we're the ones paying all the house bills, and doing a lot more other favors while they laze around.

I said I'd keep this to the mom in law so I'll stop there about the bros. So what the hell do I do? We've tried setting boundaries but she just keeps acting like a teen who gets mad when you tell them no???