I really screwed up. I think. I was testing the fuse box A slot 14 for 12v power to hardwire install dashcam with a multimeter and received no reading. I chose this one because tap a fuse piggyback is on wrong side to fit in slot 42 for on power at all times.

I then placed the car in accessory mode and still no reading. I then pressed on/off again and received a reading on the wrong post of fuse where readout showed 300+ V.

I think I shorted the fuse panel because when I start the car now I get error codes for ACC, LKAS, Parking Brake, etc. Car starts but won't allow me to shift and now I am getting a request for pin code for administration access in radio panel.

Short of me towing the car and admitting my stupidity as this is a new used under CPO warranty purchase. Is there somewhere I can start to check for a specific fuse that I may have blown further down the line or could I have really done a number on realys etc?