There should be cabs queued up outside your hotel day and night who will take you wherever you ask them to...less stressful than navigating yourself, but more expensive.
Angelinos go everywhere in cars, thetrees apparently hasn't visited Boston, NYC, Chicago, Seattle, San Fran, etc. etc....
It's Los Angeles, so you'll find plenty of great restaurants with perfectly normal portions and fine service despite the silly generalization above
There is great live music there, so check local papers/websites to see if anything interests you. You could take in a Dodgers game...drive to Burbank and catch the Tonight Show...