If papers required or permitted to be filed by these rules are prepared by or on behalf of a pro se petitioner incarcerated in a correctional facility and are not received by the clerk of the court until after the time fixed for filing, filing shall be timely if the papers were delivered to the appropriate individual at the correctional facility within the time fixed for filing. "Correctional facility"shall include a prison, jail, county workhouse or similar institution in which the pro se petitioner is incarcerated. This provision shall also apply to service of papers by pro se petitioners pursuant to these rules. Should timeliness of filing or service become an issue, the burden is on the pro se petitioner to establish compliance with this provision.