As the then founder of the megaposter company Felice Display in 2000, Rothweiler had sold his company to ClearChannel in 2006 and served as managing director of ClearChannel Megaposter during the years 2006 to 2008. After that, he was active in the advertising market in the background, marketing neon sign locations, working as a consultant in the outdoor advertising scene and applying his knowledge in the acquisition of advertising space for third-party companies.

Now he wants to be active again as a player himself: With AAAdvertise.ch, he is launching an outdoor advertising company that tracks down and markets high-quality megaposter spaces, brokers illuminated advertising locations and sells other outdoor forms of advertising. The focus is on megaposters and illuminated signs.