They already do. Its called "idling fees" and applies to busy superchargers. Its actually getting them sued by owners with free lifetime supercharging, since

They already do. Its called "idling fees" and applies to busy superchargers. Its actually getting them sued by owners with free lifetime supercharging, since they may suddenly be charged [0]. I have free lifetime supercharging on my tesla, and I'm quite happy about the idle fees. [0] https://electrek.co/2021/07/01/tesla-sued-over-extremely-reasonable-supercharger-idle-fees/ https://electrek.co/2021/07/01/tesla-sued-over-extremely-rea...