Your wife might have done many improper things, such as fighting in your company. However, she didn't break any law. She simply went to your car to argue with you, and after that she was unable to go back (because of you). If you make this point clear to the judge, your child shouldn't be taken away from you becuase at least your wife didn't break the law.
Anyway, good to see you standing out! Nest time if you want to "punish" your wife, be sure the innocent kid isn't affected!