Plea guilty（认罪）总是能成功的，谁还会阻止你认罪

See http://www.courts.ca.gov/8452.htm I think you want option #2. But you are confusing option #1 with #2.   You want to elect to go to traffic school INSTEAD OF plea guilty.

法官只看你是否超速，如果你超速，不管什么原因也要罚。如果给小孩买药可以合法超速，那公路上要乱了，每个人都可以找一个值得同情的超速理由。