Heres my 2 cents.
First you will decide during dinner if you want to pursue it or cut it off.
IF you wanted to pusue it instead of the park, (providing you are still in the same city, I would go to the bridge for a drink or two. (call ahead of time to make sure they are open, they got a lil 'cane damage.) Then for you walk, drive over the bridge and take a walk on the beach.
Even local gals, winter or summer still enjoy a nice walk on the beach, most dont make it down for a night time stroll.
If the bridge is still closed, there are still a couple bars on the island. Thats what I think anyways.
If it fucks you up and you feel you need to split, pretend the phone is on vibrate and have a story and get out. You will know if its still too soon and what to do. Follow your heart and not your dick and you should be ok.
Whatever happens, I wish you luck and a good time.