getting access to underside of roof panel

washing car, and noticed a slight dent/crease on the roof at the front level with the rear view mirror and one on the side of the roof. Cars been stood outside house a fortnight whilst weve been away.

Guarantee its been caused by the teenage kids next door playing football outside my gaff, but I cant prove anything.

Just wondered how accessible the underside of the roof is and how to get at it, was thinking of the removing sunglasses holder as the dent is directly above then I could get one of these companies to tap it out.

Any ideas?