All job vehicles should be stealable

There are some job vehicles, which you cant get away with even you fail the mission. Wish that could be changed and treat it instead as stolen vehicles.
Then what if someone want to the the job mission requiring that vehicle?


Get another job until the vehicle is destroyed? or maybe put a respawn time. Or put more of these job vehicles.
-1. But, some empty areas should be filled up with vehicles, ie around LSPD, SFPD, LVPD.
These vehicles are less than 1% of the vehicles on the server. I want them to stay available for players wishing to start missions.