Don't care attitude - sentimental tool set gone

Wish I could give a zero stars. My car was serviced here very late December just before New years day. Looking at the invoice it stated 1.5hrs labor, yet i waited 4 hours if not more to get my car back, the service advisor said the car was in the washing bay for probably 2 hours. Upon receiving my car back i noticed lose items were sliding around in the plastic tray below the boot flap inside the boot (where the triangle & jumper cables are kept). Before - I organized everything in this tray very tight fit so that there are no lose things to slide around in this tray. So this noise started to irritate me and given some thought i investigated and saw there was a big gap in this tray. I remembered i put a rolled up spanner set in this space that was sentimental to me as my dad gave it to me, in-case i get stuck with something happening to the car - i might have the tools to get the car going and get to a safe place. This rolled up spanner set seems to have been taken while the car was at Kia Bryanston, because the noise was there since i received my car back and i have not left my car open and unattended since this service. I phoned the branch and spoke to the manager, i explained the situation to him and asked if there are cameras at his wash bay department, he seemed annoyed with me and my concern, did not answer me about the cameras in the wash bay, said i had to remove my valuables before i booked the car in with them, said he will speak to his staff and phone me back - he never phoned me back. I feel this matter was brushed off, i feel this manager does not care about anything other than his salary at the end of his month. I wonder if other people also might have had things going missing from their vehicles and if they also phoned this person that had to put measures in place in case of an event like this. Will never take my car here again, and i will advise anyone against it and also share my story with them. To him this was just a silly spanner set and work he was not in the mood to do. To me it was a sentimental gift from a loved one. It bothers me to this day.