I'm not saying this is how every car is or should be designed, especially a Civic. You're also in the vicinity of the car - either you're sitting inside it or you're using the keyfob within visual distance.

But if you're locking/unlocking your car over the internet with this funky API and want to be sure it's locked, how do you do it? You don't hit the solenoid 20 times and say "well, good enough".