One ready-made excuse

Take this and vanish gracefully.

I appreciate the email and regrettably will not be reading it promptly. I am on a break and treating my email like a distant rumor. Please treat most business escalations as suspicious until proven urgent. Responses will resume after my return. For urgent matters, please use the existing approval path instead of guessing. Thank you for your understanding while I am away.

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