Nice job on the ride.
Don't worry about the deer. They know that 99.9% of the bicyclist never do them harm and stay on the path. If you are lucky, you can get some nice photos of deer and they will not mind. The rabbits around here will let you get within a foot of them as long as you are on the bike and moving.....but when the bike stops....they are gone. The deer not as much....about 10 feet.