S and S Radiator and Air COND

I took my vehicle with 47K to this repair shop for a diagnostic on my sensors, fuses and circuits. I had two clients, each referred me to their mechanic, GAS repair recommended S & S for the electrical issues of sensors. Airport Auto repair agreed that S & S was a good shop for this issue. Since I knew my oxy sensor was faulty with rich emissions and gas loss, and interior issues related to my lighter and auto lock, I took a written paper listing these items to be checked. I assumed I would be treated well since I had been referred and was told by the owner no work would be done until I approved. 
The vehicle ended up over the weekend when I was told on Friday, they would be closing and hadn't had enough time to do the diagnostic. Since it was circuits and possible use of a break box to check sensors, I thought he may well recognize the time requirement to do this. Unfortunately, I left the vehicle. 
I was called on Monday. I was told a regulator was out. This was impossible. I had no start up issues and no reason to believe this. A prior diagnostic had checked this issue and found it was in okay. While I was expecting a pricey estimate to check all the sensors, I didn't expect this. I had also expected a pricey estimate to repair the A/C. This is not what I received. When I arrived it was almost comical. They had my car opened and ready to launch into the game of deception. What immediately caught my eye was the dark puddle beneath my vehicle. I had hoped it was superficial and they simply poured dirty fluids to make it appear as a leak, but it was not. 
They literally opened the trans. pan and wrinkled the gasket and resealed it. The mechanic launched into a story about code 173 means regulator. which it doesn't. They wrote up a diagnostic stating they received a POcode 173 which doesn't apply to my vehicle. There are no PO codes with my EECIV system. I did not hear the entirety of their mind game, they knew it was pointless, I wasn't as stupid as I looked.
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