On my '65 GS convertibles, there is a Velcro like product, hook and loop, used to attach the front portion of the top boot cover. The fuzzy part is at the top back edge of the rear seat back. The hook portion was on the leading edge of the top boot. However, at highway speeds the wind would always blow the connection apart. So I rarely ever used my top boot. Sounds to me like someone did a quick fix to Alan's convertible.
John