He needs to put in a secret kill switch he can activate each time he leaves that Bronco. Otherwise, one day he will wonder where he ‘parked it’... because ‘it’ will then be just a memory.
Where he lives and works, there probably has not been a vehicle stolen for at least a decade.
However, your concern is why he does not leave it where he rides his bikes few miles away. Friends or people he knows have come back to where they parked their great old vehicle to find it gone.
So he adds another 5 miles each way on his bike ride.