1 - it is unlikely to be running this weekend
2- 4727 Southern Hills Dr, Sioux City, IA 51106
3 - They appear to be V3
Watch here,
www.plugshare.com, or supercharge.info to see if anything changes.
Best plan for this weekend would be to have a CHAdeMO to Supercharger adapter and use one of the 2 CHAdeMO chargers nearby:
150 kW charging only capable for 800V EVs. 400V EVs will charge a max of 80 kW.
www.plugshare.com
and
DCFC + Level 2 (funding awarded per http://deq.ne.gov/NDEQProg.nsf/OnWeb/AirVW-4)
www.plugshare.com