why wont my 20016 Ford 500 start?

What is your question?

car was running great no lights no problems at all. parked to grab milk at grocery store. Came back out and car wouldnt start. Battery is fine as all the lights turn on stereo works, windows roll up and down. Just makes a click when starting and nothing. Replaced starter with a rebuilt one from auto zone and still nothing... Any ideas what to do?

What makes this problem better or worse?

it is the same there is no better or worse

How long has your 2006 Ford Five Hundred had this problem?

3 days