Newtown Police are warning that lower Fairfield County has experienced a very recent uptick in car thefts and thefts from cars.  Spokesman Lt. Aaron Bahamonde says this is the time of year people are tempted to  leave their car windows open on a hot day or leave it running with the AC.  A Newtown resident recently reported that their work laptop was stolen from their unlocked car.  He urged people to lock unoccupied vehicles to save the headache of dealing with police, insurance companies and all other court issues.