Rude MIL?

[ByLemonFish]

SIL away for long weekend, so asked us to call in on MIL while she's away.
She has carers and other family members were organising her meals.

So, yesterday we made 1 hour round trip, when we walked in she was pottering in the kitchen. Handbag and gift bag by front door

She immediately said to DH "I'm going out, I'll speak to you later" very abrupt.

Apparently GD was collecting her to visit other GD on her birthday. But surely she could have let us stay for chat until GD arrived.

I rarely visit as she's been rude on more than one occasion. DH calls at least twice a week.

AIBU? My family would never behave like this

You know you weren't expecting tea and biscuits but she didn't know that.

It's not a case of 'making an appointment', FFS, it's about checking that person is going to be in and wants a visitor.
If you'd checked then you wouldn't have had a wasted hour and been annoyed with MIL when all she's done 'wrong' is already have plans as she had no idea you were planning on popping in. It's a practicality, not a formality.