just take the phone back to the store, show it to the tech and get a replacement. you should be well within your 14 days since verizon just started selling this phone not too long ago.
i assume you are not rooted
i assume you did a full factory reset and not just a soft reset
if you have NO APPS on the phone that you installed and the phone keeps mis-behaving, it seems to be a phone defect.
if it keeps acting up EVEN after a factory reset, there could be something internally wrong with it, and unfortunately there could be a million things causing the issue.
having someone locally can offer you better help than over the internet.