They do have a reservation system per their website. I think the plan right now is to get underway, and the first 100 miles or so of the trip is the same. Decide which route to take based on weather and what my wife can look up on her phone as we go.

Or, we go down one way, but take the Ferry back....but I think that taking the Ferry back is a more likely loser, as then we're on the Garden State Pkwy Northbound on a Sunday afternoon, and that will include Atlantic City traffic.