01 ford diesel truck no start Issue

I seen this shop off Google search and i had it towed their on April 25th for a no start issue. Well over a month later on June 15th i was told it was fixed but the garage door it was behind some how broke and it couldn't open. After 2 weeks of excuses i started to get impatient. NOW 6 weeks later after 3 law enforcement visits and official complaints he finally did what he had to do to get the truck out the shop. It needed to be towed to another automotive shop so I dont even know what was repaired during this whole time. Also since I complained to BBB "after the 3rd week behind a door" he threatened to sue me for slander and would not give me the truck back when I came to get it. Good thing the local police department helped me get it back and I have learned a powerfull lesson. I never told him I'm a retired mechanic myself so some red flags were obvious for me but I was trying to be patient. Please learn from this story.