Okay this is a simple suggestion found on a few other servers which I think will add more RP. When you by a car with it you get something called an alarm system with it. This gives you a text if your car is being lockpicked.
How to lockpick a car? First of all you need to purchase a crowbar from an arms dealer then you can go up to a car and /lockpick. The amount of time taken to lockpick the car depends on your jacker level. So if you lockpick 10 cars you become level 2, lockpick 20 you become level 3 and so on. If someone lockpicked your car you recieve a message on your phone saying "Your car alarm has been activated because we believe someone is damading your car."
Then the next part is up to Lewis. You can choose for a minimap blip to come up saying where your car is or since this is MED RP it can just state the general are your car is in the text message.
feel free to share your thought