Hello Stephanie,
Thanks for submitting a question about SEO and Meta Data. The BoldGrid SEO plugin is only one part of the BoldGrid suite of plugins. So, it is possible to merely disable the BoldGrid SEO plugin without disabling any other aspect of the BoldGrid functionality. This mitigates any risk that the SEO plugin can interfere with other SEO tools.
However, there are many plugins that you can use to add a Google verification code to your site without having to edit the theme and without having to disable the SEO plugin.
Best,
Christopher M.