Quick update:

The part decided to give up on me and leave me stalled at one of the busiest intersections in the city (and also a half a mile from my job I was going to). Luckily a cop showed up after a minute of people honking and going around me, helping me push it into the median. Had it towed back to my house, where it started right up.

Needless to say, NAPA has a new part on the way for me.