Most gas stations do not even really make much money on the gas. They more operate as convenience stores but offer gas too. The need for convenience stores won't change much around freeway exits. You will still need to charge going long distances and stop for a toilet break and snacks. But a good amount will close in cities. Over half the people will not need to be going to a charging station 99.5% of the time. People in apartments will likely still need to do fast charging for a while until apartment complexes are properly incentivized to install chargers.