One ready-made excuse

Take this and vanish gracefully.

This autoresponder confirms I am unavailable due to recovery time because my bandwidth finally filed formal paperwork and several unlicensed omens. Client urgency, revision optimism, and contract gymnastics may queue politely for later. Replies will arrive after the moon returns my executive function. Time-sensitive freelance panic may use the pre-approved urgent route and only the pre-approved urgent route. The pigeons have already reviewed the fallback plan.

Professionally ignoring you with the help of Half Baked Out of Office
https://ooo.halfbakedidea.ca?ref=copy

Tweak it, steal it, disappear for a while. Leave the breadcrumb if it feels charming.

Keep the same energy

More in this vein

If this one isn't quite it

Other ways to duck out

Pick one for me