Zoey is able to shoot the nail gun without depressing the safety mechanism.
Smokejumpers do not parachute from helicopters, nor do they rappel. Jumpers exit from fixed wing aircraft, and rapellers utilize helicopters for insertion into wildfires.
Despite being set in California, there are Canadian 'do not enter' street signs in town.
Safe-haven laws allow for unwanted newborn babies to be surrendered to an employee at a designated site, such as a fire station. They wouldn't apply to the children's situation.