Can anyone offer advice on how to remove the ConWay signage from my van? One driver said to use vinegar to soak it, like for wallpaper - does that really work? Would a wallpaper remover that uses steam be good? I had no trouble removing the phone number, but those were small pieces! I don't want to damage the paint, nor would I like driving around with remnants of the logo stubbornly staying put... thanks for whatever tips you can throw out there