If you do the BFR quiz in the pilot lounge you can just ask everyone else for the answers - I tihnk it's supposed to be open-book afterall
As for getting to LA FSDO, if you have to, you can get from Long Beach to LAX by public transport for just $1.35 in a little over an hour. Take a bus towards downtown LB (there is a bus route passing Rainbow, incidently) and ask for an inter-agency transfer ticket, then hop off downtown and ride the LA metro/tram to Aviation station where there's a free shuttle bus to LAX and sometimes a taxi or two. The FSDO is on the south perimeter of the airfield, dunno the exact address, might be just a short walk, but probably a taxi would be better!