How do you get from the airport to the hotel when traveling with a toddler, but no car/car seat?

We are going to San Francisco and don't want to rent a car if we can find an alternative. Our car seat is way too bulky to bring along... How do you get between the airport and hotel with a toddler? Is there an Uber with a carseat? A shuttle? My husband doesn't want to take BART (public transportation). Thanks in advance for any experience/advice! via /r/Parenting http://ift.tt/2eigVsG