Sincere advice, tow your car out asap , your mech has no experience on this convertion,still dunno how many thing he is going to spoil,how many problem you are going to face eventhough you get your car out,and he is lying to you.cannot trust already, last time my first mech also like that, simply do only , I think more than 5 times my car break down on the road, some more mid night 2am ,because of his stupid mistake . until I feed up already , give to another mech , everything solve , then only I know my car got so many problem . if you want I can even recommend you some good mech.