According to an online history [http://www.cnnw.net/~rebcav/history/3lacavhis.htm] of Wingfield's 3rd La. Cav., the unit was in East Baton Rouge on April 1, 1865. However, it was paroled at Gainesville on May 12. It was part of Scott's La. Brigade, the whole of which was paroled at Gainesville. Scott's Brigade was supposed to have reported to Gen. Wirt Adams at or near Columbus, Miss. during this time period.

MERIDIAN, March 26, 1865.
Lieutenant-General FORREST
West Point, Miss.:

[...] Wirt Adams and Scott’s forces ought to be able to dispose of any enemy advancing toward Columbus or from Mississippi River. [...]

By order of Lieutenant-General Taylor:
W.F. BULLOCK, JR.,
Assistant Adjutant- General.

MERIDIAN, April 12, 1865.
Lieutenant-General FORREST:

[...] Order Wirt Adams to join you with all of his and Scott’s commands and King’s battery, somewhere near Clinton or Eutaw, or within easy junction of Jackson. His train must be near Greensborough, and should be stopped at some point to await his arrival. Brigade of Reserves, 1,500 strong, will move up to replace Adams, and a battery sent to replace King’s. This movement of Adams should occur at once, unless enemy’s movement on Columbus prevents. [...]

By order of Lieutenant-General Taylor:
W. F. BULLOCK, JR.,
Assistant Adjutant- General.

Was the 3rd really in Baton Rouge on April 1? Was it not with Scott's Brigade on March 26 and April 12 along the border between Miss. and Ala.? Was it physically at Gainesville when paroled?

Any input and insight is welcomed and appreciated.