You're on vacation from out of state and decided to make a road-trip out of it, so you are in your private vehicle. You enter SF during one of the fine times.

You're on vacation from out of state and decided to make a road-trip out of it, so you are in your private vehicle. You enter SF during one of the fine times. Since the toll is income based and California doesn't have your info (I assume), it seems like this law would require you to provide a copy of your taxes in order to know whether to charge you the full $6.50.