Yesterday at around 6 PM, my mother and three siblings were taking my two cats (just turning 12 months) to the vet for a vaccination. They parked in front of the Vet, and went in to get the procedure done. Once exiting the vet, one of the cats managed to burst through his carrier, and sprinted across the parking lot, hiding under cars until eventually my siblings lost sight of him. They waited for 6 hours until midnight in the parking lot and still could not find him, they shook treats and called his name for hours. The veterinarians said they would keep an eye out, but I'm worried for him. The main cause of concern is the vet is in an industrial area, there are many large, busy roads. Furthermore, he was transported via car so i doubt he knows the way home. The distance between home and the vet is about 3 miles, and he would have to cross many large intersections and busy streets to make it back. Do you think there is any chance of him returning? I have heard that cats have very good homing abilities, but this situation seems impossible. Since the incident yesterday, I have gone twice to the parking lot area in front of the vet, shaking treats, waving his sleeping cloth and putting a bowl of sardines/smelly fish down to no avail. Luckily he is micro-chipped, and is in good health. What should i do?