Tangentially, the EV chargers are always out of order at O’hare and Midway airport parking lots. The Superchargers at the nearby gas station (ORD) [2] and the Target (MDW) [3] are always available. Tesla is incentivized to offer a highly available charging network (they don’t move EVs or receive revenue from other automakers otherwise); you want folks with an incentive to provide high uptime to own and operate these stations.
[1] https://supercharge.info/map
[2] https://www.tesla.com/findus/location/supercharger/chicagoil...
[3] https://www.tesla.com/findus/location/supercharger/ChicagoIL...