How about using the car cover? I had the same issue; using car cover now; the car is safe; however have to remember and cover every time I park the car at that particular position (along the wall) 
+1; took mine for such job to Atla$ dealer; they charged 400Rs for that minor repair / qalm etc! The qalm is very visible; though its downwards and one has to bend down to see it....
Aamir Bh must had pushed those guys to extreme; and doing with your own hands definitely gives much better result!
It happened as I took the car to suburb of Faisalabad. Its a great car to drive on good roads; but taking it to such places; not a good idea :-#
