It was brought to my attention that some peoples cars were being chopped despite their vehicles being unchoppable. Investigating has lead me to find that players spawning a vehicle though the mechanic app was creating vehicles without the necessary flag used to mark a vehicle unchoppable. This was an oversight however if a player was to spawn a car though the garage npc, the flag is applied flag correctly. This happy accident seems to have created a downside to using the mechanic app and I kinda like it. I'm inclined to keep this bug in as a feature to encourage people to use an npc to spawn vehicles.
* Added dialog to Mechanic App to inform players that the vehicle will not be safe from being unchoppable.