I’m not familiar with working with templates but couldn’t you pull the site out of the sd-wan by removing the local VLANs out of the tunnel.
Darren OConnor | doconnor@resalire.co.uk
https://www.linkedin.com/in/darrenoconnor/
I'm not an employee of Cisco/Meraki. My posts are based on Meraki best practice and what has worked for me in the field.