Your bike charger is not going to charge any faster at a car station than it does at home. It's limited by the current from the charger and that's regulated/constant on a decent one,.
Yes, there are adapters you can buy that will allow a 110V appliance to plug into those car charging stations, but it would not seem neighborly to tie up one of those stations for several hours to replenish your ebike. Someone will probably run over your bike in a charger-rage incident.