I made my own Autism Spectrum Disorder and mental health emergency card, if first responders are involved.
It’s a good plan B. Plan A is to not get involved with the police. I understand the anxiety about it:
Do you have techniques you can use to wind yourself down when you feel like you’re going to pop your cork?
Yes, I do. I have this technique.
I have an alert card and an attention card re being autistic. They were got just before Covid reached the UK. I’ve never had to use them.