You received a ticket- so the answer is yes. Be careful ignoring this. The one filed might have your plate number.

No vin number will not invalidate the citation.

Get a CA license ASAP- and get an attorney to represent you.

An attorney can be beneficial in trying to achieve this. No attorney can guarantee any result. My office has obtained this type of result- and got...

You did the right thing by avoiding and accident by going into the carpool lane. You should have gotten out ASAP after you got past the danger....

Hopefully the court will not find you violated PC 1000 and clarify how you should behave in the future

This might be a ticket you want to fight in Ventura County. Tough cases but worth it to fight. I assume it was the Sheriff who wrote the citation....

Nope- sorry you do not get compensated if you prevail at trial.

Your traffic citation will NOT have any impact on a co-signors credit score. It could have a negative impact on your insurance.

This is going to be word against word. It is hard to believe that you got cited for going 1-2 mph over the speed limit. Fight the ticket- hopefully...