Option or filter to accept GA cookies / display code

Would love to see option in admin screen and/or in code, to filter if user accepts cookies, because of privacy and “EU cookies law”.

just idea how I see this:
in admin interface optionally add new option to filter or not output.
by default could be opt-in;

if($myvariable){ ... display GA code output}

where $myvariable = (true|false)

http://wordpress.org/extend/plugins/google-analytics-for-wordpress/