As I read it, the Panzers were held in the Pas-De-Calais region because all military logic (as well as a ton of false intelligence fed to the Germans by the Allies) indicated that's where the inital assault SHOULD have been. The Pas-De-Calais is the shortest distance across the Channel, and is also the shortest distance between the Channel Coast and the Ruhr Basin (Germany's industrial heartland).
There is also the added feature of the famous "Transportation Plan" insisted on by Eisenhower prior to the Normandy landings. This was repeated bombing of bridges, rail networks, marshalling yards, etc. that cut Normandy off from northern France. It works in the opposite direction as well: cutting northern France off from Normandy, which fit in very well with German estimations on the location of the Invasion. The Germans could hardly have counter-attacked with much armor had they wanted to, anyway. Normandy was almost completely isolated.
However, German strategy for defense of the French coast was flawed to begin with, with it's heavy dependance on the Atlantic Wall. In the end, the vaunted defenses held up the Allies for about a day at Omaha, a few hours at Utah, and practically not at all everywhere else. The wall was also stuffed to the rafters with non-German troops (the only true German formation was the 352nd infantry at Omaha), the rest being a mixture of Germans, conscripted Poles, Ukranians, and other German allies, and in one peculiar case, two Koreans (origianlly captured by the Soviets at Nomonhon in 1939, pressed into service in the Soviet Army in the dark days of 1941-42, captured by the Germans in Russia and eventually pressed into service in the German Army. True story)).
No exotic dancers needed. I went to UCONN, where they teach you to THINK beofre you put yourself in that kind of position, not Duke, where they teach you to drink and act like a dumbass, apparently. Besides, Mrs. Wombat is plenty enough female for me.
Thank your Dad for a job well-done for me, please!