LANCASTER – Area law enforcement agencies are warning citizens that with cold temperatures, it’s tempting to let the car warm up without you. But beware of thieves who will easily take advantage of a puffer – a car that’s left running, unlocked, and unattended. Authorities say start your car with a remote starter that requires the car to be locked. Approach your car with caution, scanning the area, and walking quickly, in case someone is eyeing your return. Do not leave your vehicle puffing at a mini-mart or convenience store. It’s a quick and easy target. Newer models are desirable for joy rides or for organized theft rings and transport to other areas. Older models are very valuable for the parts.