On my website I always want to display my static map images with a zoom level of 14.
A possible solution would be at line 160 in /includes/class-location-plugins.php
$always_default_zoom = apply_filters( 'simple_location_always_default_zoom', false );
if ( ! $always_default_zoom ) {
[...]
} else {
$default_zoom = get_option( ... );
set_post_geodata( $args['ID'], 'zoom', $default_zoom );
}