The dealer came out and did the job on site. I was within my 1 yr warranty period and it was clearly a defect in the tube (vs something I did).
they rinsed/cleaned the rim as well
Interestingly, he did mention that he also found it unusual that very little/no calcium was evident in the rim/inside the tire. He figured it was due to where the stem was leaking, ie the was leaking outside the rim vs a puncture leaking inside
they had to do more rinsing on the outside of the rim since thats where the leakage occured.