I was granted temporary custody (sole responsibility) with my protection order. Will another state enforce this custody (parenting plan) order?
Yes. Custody (sole responsibility in a parenting plan), visitation (time-sharing), and child support provisions that are included in an injunction can be enforced across state lines. Law enforcement and courts in another state are required by federal law to enforce these provisions.1 The custody and visitation portion of your injunction is not enforceable, however, if a more recent custody/visitation order has been entered since your injunction was issued.
1 18 USC § 2266