Ok so, if Ralph gets this restraining order up his ass napkin abyss, he will effectively no longer have the ability to contact Vickers directly without getting in legal trouble. Meaning he can not approach them like a normal person and start negotiating terms regarding parental rights. Not that Ralph would be civilized enough to have a chance, but a civilized person would at least try with the family and possibly even come to some agreement and avoid unnecessary court involvement. IMO worth a shot.
So he'll have 2 options, to directly petition court with regards to paternity, or have a lawyer try and negotiate things with the family, wait for it to fail, and then file in court. I'm still convinced he has no intention of becoming the father of Xander. This RO greatly narrows his options, a concerned parent would try and fight it even if their chances to beat it are as low as Ralph's.