Quoted from dirtbag66:
Okay, thought if I played the game enough I would be able to answer my own question, but it hasn't happened so here I am.
How do you get to San Francisco? I've been to every other city (including Seattle and L.A.), but the game will not let me go to San Francisco! I've even traveled cross country multiple times in a game and they just have me go to Seattle or L.A. again!
Is there something I'm missing here?
City Scenes (modes)
Each of the cities on the US map corresponds to a mode. That's right, eighteen of 'em! The cities are roughly in a grid, 6 columns by 3 rows. The top row of lights is white, the middle row is yellow, and the bottom row is orange. It's not a perfect grid, though; in fact, from going from right to left, the colors always rotate in the same order: white, orange, yellow.
To begin a mode, shoot either the Start City Scene scoop or the Blast Hole when the Start City Scene globe light is flashing. You cannot start modes during multiball, or when you have locked two balls and Ted is asleep. You also cannot have more than one mode running at a time (but see bugs).
The currently flashing mode is always one of the next two cities on the map (going from right to left), so your first mode is either New York (white) or Miami (orange) -- the rightmost 2 cities on the map. This means that you can never play two modes of the same color in a row. The exception to this rule is the West Coast cities - you can reach any of the three cities on the coast.
The currently flashing mode changes when you hit a bumper or standup of the same color as a city that you can reach at that time. So for example, at the beginning of the game, New York is the flashing mode, but hitting an orange bumper or standup changes the mode to Miami; and hitting a while bumper or standup changes it back to New York.