He does not have the permission of the bishop or approval of the Church, and while he technically has the ability to consecrate, etc., his masses are illicit.
Furthermore, anybody can marry people. The sacrament is actually performed by the bride and groom, and the priest is just the witness. However, for the norms of the Church to be met so that it can be recorded as a valid wedding, the couple is supposed to be married in a church by a validly operating Catholic priest.
In other words, “Courtney” and “Scott” (what happened to taking a saint’s name for baptism?) are married, assuming there are no other impediments, but it’s still not a Church wedding, no matter where they have the ceremony.
Actually that is not true.
Catholics have the obligation under Canon law to follow proper form. A marriage without Canonical form is not a valid wedding. If they did not indeed receive a dispensation from the Bishop then in fact they are not married. Annulments are granted from time to time precisely for this reason.
A priest who does not have the faculties to perform a marriage from a local bishop is not able to witness the sacrament and the weeding is invalid. For example wedding that have occurred in SSPX chapels are invalid since they do not have the faculties. Canon 1108.