It doesn't matter if they have 1000 years of service.
They are flat out wrong and screwed up.
Maybe a screw up to the point they did actual damage to your engine. What happens if one or a few of the main or rod bolts broke and now you need a new crank or rods or $$$.
They better be doing more then just looking at it. Worst case scenario it may require a FULL rebuild with many new parts at this point and after what you have stated I WOULD NOT trust this shop. If they were dumb enough to screw up once & blow smoke up your ass about it what makes you think it won't happen again when they AGAIN try to cut corners on this NON-PAYING LABOR they are doing.
What a crock of sh~t man!!!
Just more reasons why NOBODY touches my car!!!
