I don't yet own a Tesla (though my P85D should hopefully be built/delivered in the next few weeks). I've never owned any other EV.
As I am preparing to start driving a Tesla, I have been making an effort to check out the charging facilities at places where I park.
Two examples of what I've seen so far:
1) Garage near my office:
* Two J1772 charging stalls
* Located on lowest floor, closest to exit (ultra prime spot)
* Never ICEd
* Rarely an EV there, never two EV's
* Tesla's regularly street-parked
* When I do see a car in the charging spot, with the exception of one time, they have either been sitting there without the charging plug connected, or if they were connected, they were not charging (as indicated by the display of the J1772 device). I have seen Prius, and Chevy Volt in this setup. The one time I saw someone actually charging was a BMW i3.
* Nobody leaves notes with their contact info
* Power is expensive, but no worse than the pricing for filling an ICE car at a gas station.
Whole Foods:
* Ultra prime location, right next to front door
* Stall usually taken
* Not actively charging (J1772 plug connected, but not charging)
* Power is FREE
In any event, I agree -- these spots should be at the back of the lot, not the ultra prime location. I don't want to park next to all of the insanity anyway. I always parked my ICE car in the back of the lot, and think it's unfortunate I will have to change this behavior.
Unfortunately, it's very unlikely that signage will change for reasons already discussed -- and it's even more unlikely that towing will happen.