Electric car road rage, electric car etiquette, and sharing charging stations
This piece of advice might be easy to follow if you're at work, and can easily go outside to move your car. But what about an electric car parked in long term parking at an airport while the owner is away on a long trip? The car may be fully charged 3 hours after the owner leaves, and will occupy the charging station until the owner returns. There's not much we, an electric car owner taking an airplane trip, can do about this, instead it is up to the airport to provide enough charging outlets. Long term parking is one example of a perfect situation for slow speed 120 volt charging, and the extreme low price of 120 volt power outlets makes it easy to install dozens of these power outlets.
Place a notice placard in your electric car window: As a courtesy to other electric car owners, leaving a note in your car window giving your phone number can let them get ahold of you if there are concerns or problems. The EV Charger News placard is a good example: http://www.evchargernews.com/chargeprotocolcard.pdf
Look at indicator lights to see if a car is still charging before unplugging it: All the electric cars have lights indicating how fully recharged the car is. Unfortunately each automaker has its own idea of the best way to indicate how fully recharged a car is. Unfortunately in some cases the lights turn themselves off, making harder to determine if the car is recharging or if the lights are just off for some reason. In any case, the idea is to, before unplugging a car that's charging, to have an idea if the car is fully recharged yet. Unplugging a fully charged car is at most a minor annoyance.
Placing notes on cars who ICE an electric car charging space: Electric car owners sometimes get irate when a charging station is ICED. We sometimes wish to turn into the Incredible Hulk and start smashing things. An angry note left on a car might give a momentary rush of power, but will that nastygram help with relationships between gasoline and electric car owners? No.
Safety first: Be careful with how you run the charging cord, taking care to run the cord in a way to avoid others from tripping over it.
The legal status of any limits or control over electric car charging station usage is spotty at best. The etiquette over handicapped parking usage is well understood everywhere, with fairly uniform laws across the country. While California has a law concerning electric car charging station usage, most locations do not.
With this sort of etiquette we can share the electric car recharging stations until such time as the powers that be install enough stations.