I’ve had these experiences myself…but lately things have been better somehow.
One time they wouldn’t do a compression test because my car was “too highly modified”. So I asked why, and they told me the lower crossmember was in the way…WHAT?? They’d have to charge another 1/2 hour of labour to remove it. I asked the mechanic to come out and explain.
Turns out unbolting my strut tower bar to get to cylinder 3 was worth $45 + to them…
Went through the EXACT same conversation with one of the guys at one of my local Nissan dealerships! :lol: