You should be fine, but definitely make sure you call to let them know that you will be there. We got delayed a day driving to Florida because of a severe storm and I called BWV to let them know we wouldn't be there that night, but would be the next day. They thanked me for letting them know and said members should always let them know of delays
Good luck and I hope you enjoy your vacation and have a safe trip!
Yes, you are fine as long as you let them know. The rules state that if you don't show up you lose the whole reservation, so you have to let them know. I am not sure how picky they are for the no shows....