Heartwrenched. I agree that it would be a bad idea for two reasons.
Firstly, I can only echo what everyone else has said. If you are seen either by your D or someone else who recognises you, this would only cause trouble.
Secondly, and this may surprise you, it could simply make you feel even worse. We moved away so we wouldn't see our GC who lived just down the road from us.
Seeing them and being unable to talk them, reach out and touch them was unbearable. Far worse in my experience then not being able to see them at all.