(This is for the Marlton office)
Get off at exit 4
There is a tollbooth.
Try to be on the left.
IMMEDIATELY after the tollbooth the exit divides, stay to the left and circle around.
Merge onto the road.
Pass the car dealership and the tile place. (both on right)
Now follow Mrs. A's directions about "past the dental sign". (These are the same, just adding the bit about 95.) The entrance is after the light and is a driveway, so it's easy to miss but the sign is a great indicator.
The drive leads strait into a parking lot, that's Coopers. They have the red awning.
With all this you can't get lost!
ALSO: On the way down, once you pass exit 10 or so there is construction and LOTS OF COPS! just don't go faster than traffic and you'll be fine.
What time do you go? If NYC traffic is going to be icky, so anytime after 3pm southbound, you might want to leave some extra time and plan on arriving early and getting something to eat somewhere. It can get thick!