First, I do not believe you will have a problem with finding a idle slot to charge at.
Second, keep in mind, you have 20 slots at this location, 7 more slots across the street at the Mall (Listed as Roseville, CA) and if it is all too busy with both of these location you have 18 more slots near 1-80 in Rocklin. That is a total of 45 slots which is more you would find at our largest location at Kettleman City which only has 40 slots.