I am not sure what lemon laws are in Cali, but here in Florida it only applies to new cars that have a problem with the same thing three times. So, lets say that the car has a bad engine, you get it fixed but it breaks the same way two more times, then its considered a lemon.
Used cars are generally always sold as is. Especially if it is a buy here, pay here place rather then a reputable dealer. Dealers may offer their own kind of warranty, but if your car broke down within 30 miles, my guess is it was from a buy here, pay here place, was an old car, and there is no warranty.
Like the other guy said, you have just been taken for a ride, enjoy your car.