Rob,
That sounds like a reasonable explanation. It appears you have quite a collection of source materials on the topic. I have been gathering remarks from soldiers who passed through the various towns and villages in Pennsylvania, Maryland and Virginia, for a potential article. I understand that Jenkins' cavalry was the first to arrive in Carlisle, at 10 a.m. on 27 June. At the house of a Mr. Moore a council of field officers was held by Gen. Jenkins around midnight 30 June/1 July, according to Lt . Col. Vincent Witcher of the 34 VA Cav (Bachelder Papers II: 1236). Here's another source that describes a general location near Carlisle, from the diary of Cpl. John Henry Vest of the Second Richmond Howitzers: "June 28 ... We are camped in an orchard adjoining a yard and garden. The old dutch came out to feed the old turkey and young ones, but the old turk had deserted, it is supposed, or was absent without leave."