Play the odds
The last 5 vehicles I have owned, 3 big V8 GMs, 2 Jeep Grand Cherokees, latest a 04, have all had button on belt entry, an alarm (not factory!!) that will not allow key start if activated. Key over visor.
Observe area, press button, step in, slam and lock, key retrieved, drive off.
If you do not lock with the lock button, the car locks via alarm as soon as you start the engine.
Have a friend who goes to matches with me! Poor English, I go with him! We tend to go to the local ones in own vehicles, all the gun gear is in personal vehicles, he works for City PD, on one occasion, he throws vest in rear, slammed door, he is locked out!! Engine running (hot here!) a trooper was visiting same range, flagged him down, slim jim produced (his first shift without a FTO!) we then spent a while showing him how to use it! And we bought the coffees.