Should I fight a ticket I got for riding my bicycle in a crosswalk? I was riding my bicycle home. I live on a one way and was waiting in the crosswalk while oncoming traffic down the one-way was green. This was at a 4 way intersection. There was no oncoming traffic and all other lights were red. I rode into the crosswalk and was nearly through when the light turned green for the oncoming right side traffic. A man flew through the crosswalk, not seeing me, and we collided. I hit his mirror off, made impact with his door, and fell down. I was then treated by the EMT and taken to the ER for further evaluation.

I am suffering no broken bones, but a painful hand contusion, cuts and bruises, as well as enhanced neck pain from a previous neck injury.

The cop found me still very frazzled in the ER and told me I was getting issued a citation for going the wrong way on a one way (while the man who hit me got off scot-free). The cop also said she could be giving me 3 other tickets but was trying to be "nice." I thought you didn't have to do that if it was a traffic infraction...

I understand that local bike laws in Santa Barbara say you are treated as a car. However, I was in the crosswalk (which is parallel to the one way street) when I was hit.

I need help understanding the laws regarding these specific circumstances. Is this worth fighting in court?
According to Santa Barbara City Ordinances: 

10.52.130 No Bicycles on Sidewalk.
No person shall ride a bicycle on any sidewalk except at a driveway; provided, that a person may ride a bicycle on any area designated by the City Council as a bikeway.  

So, unless this was a designated "bikeway," you were clearly in violation of at least one law. I'm a little unclear on your story, but it also sounds like you crossed against the signal. That would, of course, be a second infraction. 

You mention that you live on a one-way street but were crossing at a four-way intersection. This doesn't make sense. A two-way street crossing a one-way street is a three-way intersection. But I'll do my best to make sense of it. 

If you were riding on the sidewalk on the left side of a two-way street, or if you were riding the sidewalk against traffic on a one-way street; the ticket for riding against traffic also sort of makes sense. It may or may not be entirely correct, but a case could be made.

In short, you were clearly in violation of some law, probably several. If you try to fight it, you may get out of the ticket you were specifically given but you may also end up with several others. 

I would also encourage you to read all of section 10.52 in the attached city ordinances as well as the California Vehicle Code Sections 21200-21212, all of which pertain to bicycling in California. For the best understanding, read the state laws first and the local laws second and look at the local laws as an addendum to the state laws.