One ready-made excuse

Take this and vanish gracefully.

This is an automated reply confirming my temporary absence. I am taking vacation seriously enough to avoid real-time responses. Cross-functional anxiety should be routed through someone with more availability. I plan to follow up when I am back online. For immediate needs, escalate through the normal chain before inventing a new one. Thanks for your flexibility.

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