If you lock your keys inside your car, call a locksmith, reach out to a family member with an extra set of keys, or contact the local police or a car service provider for assistance. Alternatively, unlock the car yourself by prying the window or popping the lock.
Attempt to unlock the car by using a thin wooden object to pry the window open, and then insert a wire coat hanger. Use the hanger's hook to lift the lock handle. Alternatively, wedge a tennis ball with a hole poked in the middle against the key plate. The resulting suction can cause sufficient air pressure to force the lock open.