Now a Texas plumber is suing a dealer for not removing decals advertising his plumbing business from a traded-in truck. Mark Oberholtzer, the owner of Mark-1 Plumbing in Texas City, claims a Ford dealer resold his truck without removing the logo and company phone number. The suit traces the pickup's journey from a local auto auction to Mersin, Turkey. Former U.N. ambassador Mark Wallace, of the non-profit Counter Extremism Project, has been trying to bring attention to the huge number of trucks - specifically Toyotas - the Islamic State has bought.