First thing's first, the molarity of a concentrated hydrochloric acid solution does not come near
What you have there is actually percent concentration by mass. The most concentrated hydrochloric acid solutions available are about
The molarity of a
You can calculate this value by using the hydrochloric acid solution's density
What you do is take a
Now, I'm not entirely sure what shelf molarity means. The closest term I'm familiar with is shelf life, which basically gives you an idea about a compound's stability, i.e. how much time you can expect to pass until you see any chemical changes occuring.
As far as I know, hydrochloric acid does not have a shelf life, provided that you store it properly - this is expecially true for concentrated hydrochloric acid solutions, which tend to evaporate at significant rates.