If any autoparts retailer doesn't have it, there's always Google Shopping. The gas cap's door can't be opened from the outside of the car, unless someone wants to do serious damage to your car.
Locking gas caps are unique for the Hybrid. I will change my question to: Has anybody purchased a locking gas cap for for a TCH ? And where did you purchase it from and what did you pay?
Locking Gas Cap for Hybrid
