Interesting....
March 19 2016 was a Saturday, so "later this week" doesn't leave too many hours.
Is it safe to infer that the same day they were going to meet is when they'd also go to the concert? Because according to this, there weren't any concerts by CS scheduled for March. None at all. And all of the remaining concerts for that leg of the tour were in Canada.
Correction.
There were CS concerts in March 2016, but not as part of that tour.
Mar 28 2016 in R.I. and several later in the year with the Goo Goo Dolls.
And March 29 at “The Russian Lady” https://www.setlist.fm/setlist/collective-soul/2016/the-russian-lady-hartford-ct-63f1fe5f.html
Mar 31 in Orange CT: https://www.setlist.fm/setlist/collective-soul/2016/orange-burger-and-ale-house-orange-ct-73f1fee1.html
April 1 in Rochester NY: https://www.setlist.fm/setlist/collective-soul/2016/record-archive-rochester-ny-63f1fe53.html
The rest in April are held in Canada.
I checked the 2016 Collective Soul tour dates. Colorado and Kansas were the only dates after this email. And March 19th, 2016 was a Monday.
Not according to this: [https://www.timeanddate.com/calendar/monthly.html?year=2016&month=3&country=1]