It seems the BPT dies at the Indiana border and in the Ohio small towns before you get as far east as Toledo. The only BPT I found was at Clementine's in South Haven on the Lake Michigan side. I haven't looked very hard except in the UP and Midland. Both nada.
But if you drive south on I-69 and get off at the first exit across the Indiana border and go west on Highway 120, you'll run into Dave's Lake Shack. There you will definitely find your first BPT.