FOND DU LAC, Wis. - A Wisconsin priest has God on his car but Best Buy's lawyers on his back. Father Luke Strand at the Holy Family Parish in Fond Du Lac says he has received a cease-and-desist letter from the electronics retailer. At issue is Strand's black Volkswagen Beetle with door stickers bearing the name "God Squad" in a logo similar to that of Best Buy's Geek Squad, a group of electroni…