Terrible organisation at pick up

We were handed the keys with no pre check condition of car and sent off to a huge car park to find it... 2 groups with 4 young children... I managed to picture all of the scratches and dents however my brother in law after 10 mins of looking was so stressed with not being able to find his car in 30+degree heat that he forgot. He was charged on return for small scratches on the car which were on a precheck sheet, he refused to admit to and was told that he needed proof or he would be fined ...I was then shown my precheck sheet which the same man said I had made extra scratches that he had no record of, fortunately I then produced the (unbeknownst to him)photos I took which showed these marks and It was painfully obvious that he was trying to con me.. I had also just witnessed an elderly lady being fined for chips of the paintwork and she had no evidence otherwise. I would have thought a precheck walk around should be standard prior to hiring any vehicle, not an inquisition when returning.. a very disappointing end to a lovely holiday . Please respond to this complaint prior to my posting on trip advisor in 48 hours.