Phil:
My opinion, just FYI I am in NJ
IF you were wiring a new detached (or attached) resi garage IMHO you would have to comply with the various Code articles you quoted above.
However, from your description, this is an existing detached resi garage, and all you installed is a feeder/branch circuit for a EV charger device. It sounds like you conformed/complied with the 645 Article requirements. Based on that IF this job was in my jurisdictions I would have no issue with it. Assuming the EV circuit is marked at the source, and the existing circuit(s) are marked at their source.
Please note that the above is my opinion as to the work you described.
Stay safe
