I am from Indiana (born and raised for 23 years) and just moved to Los Angeles at the end of August. Where are you moving to in Cali?
Los Angeles is very busy with a lot of traffic but for the most part, people are really nice. The driving is TERRIBLE, but just remember that if people honk at you, they are not necessarily being mean.
Any other questions?? I would be more than happy to answer! I have friends all over the state and can get their opinion for you!