That is pretty scary, Ron. I feel like you if you haven't reported that bear to the park that you should. That is unusual behavior as you know, especially the sitting down and hanging around bit. Brrrrr! Sounds like a habituated bear, or one that is becoming habituated, or maybe just a sick bear, but none of the behavior you encountered is going to lead to anything good.
100% you made the right all to ditch camp. Glad you had no additional problems.