DO YOU THINK WALMART HAS CELL PHONE BLOCKERS?

THE WALMART CONSPIRACY: BELIEVE IT OR NOT!

It may just be me but everytime I go into Walmart I can’t seem to get a cell phone signal. Maybe it’s the huge warehouse metal type building but my cell still works in a highrise or in the underground tunnel in Houston.  Why not at Walmart?  My mind has been working over time with conspiracy theories on this one.  I think Walmart may intentionally block cell phone cars for those wives who may have to call their husband for an expensive purchase approval.  If they can’t get a call out then the wife just goes ahead and makes the big purchase.  Or it could be vice versa.  Another theory is to keep shoppers focused on the store and not pesky cell phone calls.  What do you think?  Can you get a call out of Walmart?  
Note: I have to go to the outdoor garden center to get calls at my local Walmarts!