Whatever you do, don't park at the diner.
I actually like the location. If you park right in front of that whatever that is that Indian restaurant supply place there's not a lot of foot traffic there.
The door does face 309, but unless somebody is really driving by and trying to watch that door, I think it's really pretty discreet. If I remember correctly I think there are shrubs and stuff put up along the road anyway.
Compared to Sena therapy in Norristown, that place is completely covert.
Sena therapy man, the whole world could see you out in the open right there. Unless you parked in the back.