Helpful people

Hi how do people cope with strangers who try to be helpful but actually cause more problems?
My husband has severe initiation problems with his walking. He is extremely aware of people looking at him and when well meaning people ask if they can help which draws more attention to him, it makes things worse.if I say thank you but he has Parkinson’s and just needs a moment to get going they look at me as if I am a bossy bully. He is getting more and more reluctant to go anywhere. He won’t use a wheelchair and can’t handle a stick. We have an excellent neuro physio who has given us various strategies but he just can’t seem to or doesn’t want to do them consistently. We are only in our early 60s but life is becoming confined. Any suggestions welcomed

I have seen badges that explain that the wearer has parkinsons, not sure where from, could these be helpful?