From the Clemson University Police Department:
The Clemson University Police Department is aware of the potential for an increase in counterfeit ticket incidents this weekend for the NC State game. We have special details assigned to target these issues and will prosecute individuals who are engaging in this illegal action. We ask fans to call the CUPD (864-656-2222) if you encounter individuals attempting to sell counterfeit tickets on campus. If you have already experienced counterfeiting as result of purchasing tickets, please contact your local law enforcement agency to report the matter for investigation. We also encourage everyone to use reputable sources if you choose to purchase online tickets.
From Clemson Athletics: