I went to HEB earlier today. Probably a couple hundred people. Everything still basically wiped out except for stuff like ketchup and motor oil. Plenty of milk and cereal though as if there's a concerted effort to make sure it's stocked.
The Plexi glass they erected in front of the cashier is incredibly re ed. It's about 18x24 and you step one foot to the right to pay with your credit card and you have a free and clear shot to sneeze on them. Especially when they turn to bag your groceries.