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I get your point, I can't think of a situation where ALL clones would have to meet 1 condition, but regardless I get it.

in case anyone needs it or you see a good way to include it I created the following callback:

// js functions
    function checkCompareStatement(needle, haystack, compare) {
        if (needle === null || typeof needle === 'undefined') {
            needle = '';
        }
        switch (compare) {
        case '=':
            if ($.isArray(needle) && $.isArray(haystack)) {
                return $(needle).not(haystack).length === 0 && $(haystack).not(needle).length === 0;
            }
            return needle == haystack;

        case '>=':
            return needle >= haystack;

        case '>':
            return needle > haystack;

        case '<=':
            return needle <= haystack;

        case '<':
            return needle < haystack;

        case 'contains':
            if ($.isArray(needle)) {
                return $.inArray(haystack, needle) > -1;
            } else if ($.type(needle) === 'string') {
                return needle.indexOf(haystack) > -1;
            }
            return false;

        case 'in':
            if (!$.isArray(needle)) {
                return haystack.indexOf(needle) > -1;
            }
            var found = false;
            $.each(needle, function(index, value) {
                if ($.isNumeric(value)) {
                    value = parseInt(value);
                }

                if (haystack.indexOf(value) > -1) {
                    found = true;
                }
            });

            return found;

        case 'start_with':
        case 'starts with':
            return needle.indexOf(haystack) === 0;

        case 'end_with':
        case 'ends with':
            haystack = new RegExp(haystack + '$');
            return haystack.test(needle);

        case 'match':
            haystack = new RegExp(haystack);
            return haystack.test(needle);

        case 'between':
            if ($.isArray(haystack) && typeof haystack[0] !== 'undefined' && typeof haystack[1] !== 'undefined') {
                return checkCompareStatement(needle, haystack[0], '>=') && checkCompareStatement(needle, haystack[1], '<=');
            }
    }
}

function check_for_clone(haystack, compare, needle) {
    var val;
    var $elements = $('[name*="' + haystack + '"]');
    $.each($elements, function() {
        if (true === checkCompareStatement(needle, this.value, compare)) {
            val = this.value;
            return false;
        }
    })
    return val;
}

// your field or metabox
        'visible'    => array(
            'when'     => array(
                array( 'check_for_clone("sf_sign_module_type", "=", "room-availability-module")', '=', 'room-availability-module') ,
                array( 'check_for_clone("sf_sign_module_type", "=", "room-current-activity-module")', '=', 'room-current-activity-module'),
                array( 'check_for_clone("sf_sign_module_type", "=", "room-upcoming-activity-module")', '=', 'room-upcoming-activity-module'),
            ),
            'relation' => 'or',
        ),

I am simply re-using the built-in checkCompareStatement -- if some of your functions had global access it could be very useful, along with other conditional passed parameters, i.e. needle, compare, haystack