Yep, just one of the legendary facts about this movie. Lugosi died, so Ed just used some stock footage of him walking out of some bushes (in broad daylight), and cut these with footage of his wifes chiropractor, holding his cloak up in front of his face. Its Ed Wood genius.
Pretty sure one scene changes from day to night about 8 times, with the police finally arriving at the end of it in a completely different car.
The fat ghoul getting stuck in his grave when he is supposed to be rising from it is great as well.