I was thinking that how about adding a mechanical job I mean cmon, we have paramedics for insta-healing which peoples would not be around the food shops then why not a mechanic job to insta repair the vehicle instead of pay n spray. Per repair will be 100$ of cost.
About abusing the job, the car should stay stagnant for like 5 seconds to prevent script abuse.
I doubt it is much neccessary but you guys can give opinion about it.