sorry, only one found ... and I'm storing enough publications printed with photos of Jagdpanther.
The standard camouflage scheme seemed to be for the most of those tank destroyers / hunting tanks JAGDPANTHER "sandgelb" overall or the classic "Dreifarbtonanstrich" three-tone-camouflage existing in "Sandgelb, Schokoladenbraun und Olivgrün" (German tank-yellow, tank-brown and tank-green).
I found one profile "aufgelockerter Dreifarbtonanstrich" ( i.e. ambush camouflage) in: Wise, Terence "D-Day to Berlin", Arms & Armour Press Ltd., London, 1979 on page 77 subtitled: "Jagdpanther Ausf. G in France towards the end of 1944, painted in the ambush scheme but in this case with the oliv grun and rot brun patches sprayed on. The national identification symbol isthe only insignia carried". Unfortunately no original-photos is printed !
This JAGDPANTHER must be part of "schwere Panzerjägerabteilung 654", probably 2nd coy with a total of 12 tanks.
However, after done a cross-check concerning all photos of those JAGDPANTHER printed in Jean Restayn's "Les Panzer en Normandie" Militaria Magazine No.1, Paris, 1991, don't show any ambush camouflage.
So my solution will be: there wasn't any ambush camouflage painted or sprayed on JAGDPANTHERs.
All informations to the best of my knowledge and in accordance to my publications.