I think anything short of fully obscuring your face (a-la ICE-agent/stormtrooper) will be merely a mitigation and not 100% successful. I recall articles talking about face recognition being used "successfully" on people wearing surgical masks in China. In the US they ask you to remove face masks in places where face recognition is used (at the border, TSA checkpoints), but would be unsurprised if that isn't strictly needed in most cases (but asking people to remove it preemptively ends up being faster for throughput).

Your gait I think is more useful than your face is anyways and my understanding is it's my difficult to disguise. So you'll need a wheel chair/scooter and a mask in public.

Aren't we back to where this is illegal again, unless you're an ICE agent.

If you have not yet heard of it, look into gait recognition. Any battle for anonymity is a losing one, it appears.