Is the existence of an unjust judicial ruling issued by the government considered an excuse for not visiting one's mother and relatives and sufficing with a phone call?

If the situation is as you described, where a judicial ruling has been issued against you unjustly, and you fear that if you go out to visit your parents and relatives this ruling might be enforced against you, then you are excused from visiting. However, you must maintain ties with them to the best of your ability, especially your mother, for her right upon you is great.