I arrived in San Francisco already feeling exhausted. When renting the car from Thrifty, the staff told me that I must buy third-party liability insurance as required by California law. I ended up spending half an hour on the phone with the domestic rental car service. Some representatives said it wasn't necessary, while others said to pay it first and discuss later. The inconsistency in information was very poor, wasting much of my time. Ultimately, due to my firm stance, they temporarily did not charge me for the third-party liability insurance.