Midas review: engine repair

On Nov 21, 2018 I had my non-running vehicle towed to my local Midas to be repaired. Upon diagnosis, I was told I needed a new engine, but that Midas couldn't find one at a reasonable price. I purchased one on my own, and had it delivered to Midas on Dec 6. I was told, with ~2 days of labor, I should have my car back.

Every week after that, something would come up... an employee would be off... someone wouldn't show up... Christmas... and the date-of-completion would be pushed back. My vehicle sat in the same spot out on the Midas lot that I had it towed into through the whole of Dec... I would drive past and see it there, and also see all of the cars/customers who were being serviced in my stead.

I was called into Midas on Jan 3 to be told that my car had been broken into, ransacked, and the $600 radio stolen - but because 'it hadn't been pulled into the bay overnight, Midas insurance wouldn't cover it'.

Jan 8 I was told the engine was in, but that my car still wouldn't run, so they would replace the exhaust manifold.

Jan 10 I was told the manifold was installed, but the car still woudn't run, so they needed to replace the fuel pump.

Jan 11 I was told the car was ready to pick up so come in and settle up my tab to the tune of $3500.

Jan 12 I go in to discuss the situation with the store: I explained that, while I understood that bad luck happens sometimes and I had no hard feelings toward Midas, that I'd had to rent a vehicle for an extra 5 weeks solely because of Midas' issues and that I wasn't willing to pay twice, both the rental place AND Midas. In addition, because MY car repair was a low-priority job to them (their business, not my concern) that I wanted to just be made whole. I wanted for Midas to cover the repair bill and replace my missing radio.

I was told that I was being unreasonable, and that they couldn't stiff their mechanics, that they had brought someone in on a Sunday to work on my car, and that they assumed I had multiple cars to drive and so they didn't think they needed to fix my vehicle in a timely manner. So there was no way they would do more than take $1000 off of my bill.

When I told the owner Carl that this was unfortunately unacceptable and that I would have to escalate this issue (even though I didn't want to and I'd have much rather just handled this all in-house and leave Midas a great review stating that 'even though the experience left a lot to be desired, Midas cares about their customers and made it right', Carl told me he would get a mechanic's lien on my vehicle and get it impounded and 'you do what you have to do'.

tl:dr I am very disappointed in my recent ongoing Midas experience and am reaching out to legal counsel to start action.