Do any of my fellow autistics wear an autism badge out and about?

I was diagnosed autistic not so long ago in my early 40s, the psychiatrist who diagnosed me said I mask phenomenally well that it goes almost undetected.

My family say I should wear a badge that lets others know I am autistic because I can come across rude when shopping or in other social situations where people are new to me. I wore a lapel badge that said I’m autistic to trial it a few weeks and it did make a huge difference when i was shopping, I realised sales assistants willing to help more, more smiley. 

The flip side of it is, do I really want people to know I’m autistic ? It feels like a label and does that mean I am giving people an opportunity on passing judgement without knowing me??

Thoughts please? X