How did the entire California Class make it to the Cerritos during the Texas Class incident?

During LD 3x10, as much as I enjoy the comaraderie (and Boimler voice-cracking through the ship names), I was little confused as to how the entire class could have made it to the Cerritos so fast. Wouldn't they be relatively evenly spread across the safer part of Federation space, with some in the middle of missions?

After some thought, my theory is that the class decommissioning was more immediate than I first thought; Starfleet had ordered every ship of the class to a central location for crew reassignment not too far from Douglass station, so they were already gathered nearby (having travelled from whatever corners of Federation space the class may have operated in) and been waiting a few days or so when Mariner informed them of the situation.