Parking looks very expensive is there a nearby garage thats cheaper than the hotel is charging?
We returned our hire car when we arrived in San Francisco from Las Vegas to avoid parking fees as we had been warned that it was very expensive to park anywhere in the city. Public transport is excellent.
Not to my knowledge. Sorry
Sorry...we didn't rent a car and am not sure what other parking is near by. In any event, if you are driving into SF then obviously you need parking. If you are flying in, I'd pass on a car rental. We took BART from the airport and was a breeze and only cost $9 one way.
Get an answer from Hotel Union Square staff and past guests.