One ready-made excuse

Take this and vanish gracefully.

Your email has been received during my scheduled absence. I am taking vacation seriously enough to avoid real-time responses. Budget drama, calendar gymnastics, and status updates may proceed without me. I plan to follow up when I am back online. Urgent needs should be directed to the appropriate stakeholder with calendar access. I appreciate your understanding and patience.

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