It's tempting to "just ride and screw what they think", but we're a small sport, people aren't reasonable, and perceptions matter. A friend in southern Spain was targeted/threatened online for posting a solo ride on Strava - in a rural/mountain area, before any restrictions came into force.
What's there now will be here tomorrow. People are afraid and we'll see similar reactions to outdoor activities, regardless of actual public health advice / good sense. Expect tabloid articles/online reactions branding people as selfish "spreaders".
Audax UK are in an impossible situation - if they officially endorse any kind of riding, they're turning all long-distance riders into targets, for a long time after this crisis has passed.
Personally, until there's an official no-cycling rule, I'm going to ride my bike alone and enjoy it. No points, no groups, no cafes, no social media. I'm hoping that'll be enough.