An update on my experience. I ended up getting us tested at 3 different test sites, assuming (correctly) that some sites would return results faster than others. I also did not want to pay hundreds of dollars in rush fees since above posts suggested PCR turnaround of <24 hours. The below is the timeline for my family of 4.
Sameday Health - results returned between 20 - 29 hours after collection (different family members' results came through at different times)
CVS - all results returned together 30 hours after collection
Quest Diagnostics - all results returned together 44 hours after collection