So here's my generic SHTF scenario plan. Upon anything of that nature, the wife knows she is to go to the local grocery store and basically steal all the pharmacy drugs that we will need. I will be going to another store and getting all of the bottle water and canned food I can. We will rendezvous in the middle of these two stores. (not far from each other). We will then quickly evaluate the situation, if it is possible we will head toward the water (about 30 minute drive) and take out a sail boat. If this isn't going to work but we still have transportation we will take back roads up north about an hour or two. This should get us into a very unpopulated area where we can lay low for awhile.
A couple flaws in this plan:
1. Everyone else will do the same thing. You'll need to be first, and you'll need to be armed - well-armed, and willing to shoot people dead.
2. You can only carry so much bottled water and canned food. Since in this scenario electricity has stopped flowing - the watermakers on the sailboat are dead. It is far easier and more economical to steal something that will allow you to make water from seawater. So you'll need fuel and matches, and a tarp, something to fashion a burner from.
3. Your canned food will only last so long. Better to find enough fishing gear and lures/bait to enable you to live on the water.
4. Are you going to walk the 30 minute drive to the marina? With all of your bottled water and canned goods? Remember - 1 gallon per person per day for drinking. Water = 8 pounds per gallon. You should have roughly a shopping cart full of water and another full of canned foods. Doesn't really matter what it is. That will last a week, and weigh a couple hundred pounds, hopefully you and your wife will be able to push the carts through all the stopped cars and mayhem, and still be able to fire on marauders.
5. I trust that you are headed towards - the ocean. You'll need to murder the crew on the sailboat to take it over. Also you'll need a way to move the boat out of dock without power. Sails? Don't count on it in close quarters. Are you an experienced sailor? You won't be able to tack into the wind if the wind is going the wrong way in the harbor. Do you know where the channels are, and how much your stolen vessel drafts? Very important bit there.
It's very likely that the vessel will have a few hundred pounds of water and diesel on board (for the generators and the main motor to move around in the harbor). It's also very likely to have at minimum a couple handguns or a rifle hidden onboard somewhere too. Most boats will carry a complement of basic first aid and medications too (stuff like anaphylactic kits, a defib, tourniquets, emerg blankets, anti-emetic, anti-nausea, painkillers, both conventional and narcotic, etc.)