Actually, I knew someone whose car got side swiped and when the cops came they said they would review the security cameras. There was a witness that helped but it was the security cameras that confirmed the incident and who did it. Not to late to check into it and consider reporting it. You should definitely let the store know what happened and that removing those security cameras was not a good idea. If you have the other vehicle's paint on your truck you can try using a small amount of lacquer thinner to remove it (with a soft cloth).