I got a hold of all the pickup locations. This excludes daily pickups and the like. Just letter boxes, customer centers, UPS Stores, and mail and ship places. It seems some people have figured out how to turn off caps lock WHILE OTHERS HAVE NOT. The top 10 CPAD notes, in order of most frequently occuring: Some of my favorites of all the CPAD notes: Isn't that the whole point of letter centers? I'd love a photo of this one. I've only ever seen four letter centers--the standard indoor and outdoor ones, the old gray one and the old huge brown one (big enough for a small person to climb in). Can't find it in Google Street view. ESSILOR USA, 1718 LAFAYETTE RD, INDIANAPOLIS IN There are about 40 boxes with two air pick up times. Most are in California. Notes are something along this line: Here's street view for one of those boxes outside the Oakland, CA center Here's a photo I took of the lid of one of the letter centers inside the Embarcadero BART station in San Francisco: And I looked at pickup times: The location with the latest ground pickup is at 23:45: 900 GRADE LN, LOUISVILLE, KY LOCATED IN FRONT OF THE MAIN GUARD SHACK ENTRANCE TO WORLDPORT. For air--where else but WorldPort? 23:55: 8100 AIR COMMERCE DR, LOUISVILLE, KY OUTSIDE IN FRONT OF THE UPS CUSTOMER COUNTER (Ground pickup time for that box is 16:30) There's also this one: AEGON CENTER 400 W MARKET ST, LOUISVILLE, KY Pickup time listed as 23:00/16:30 for air/ground but CPAD says "IN THE HALLWAY TO THE PARKING GARAGE; AIR PICKUP TIME IS 12:10 A.M."