As one of the largest Rescue Squad in the State of North Carolina, Piedmont Triad Ambulance & Rescue, Inc. (PTAR) provides the following services throughout our service area Responding on Emergency 9-1-1 Calls. We also Offer Convalescent Transportation stand by for Special Events.,As one of the largest Rescue Squad in the State of North Carolina, Piedmont Triad Ambulance & Rescue, Inc. (PTAR) provides the following services throughout our service area Responding on Emergency 9-1-1 Calls. We also Offer Convalescent Transportation stand by for Special Events.