1. Participation by a petitioner in a proceeding under this chapter before a responding tribunal, whether in person, by private attorney or through services provided by a support-enforcement agency, does not confer personal jurisdiction over the petitioner in another proceeding.
2. A petitioner is not amenable to service of civil process while physically present in this State to participate in a proceeding under this chapter.
3. The immunity granted by this section does not extend to civil litigation based on acts unrelated to a proceeding under this chapter committed by a party while present in this State to participate in the proceeding.