Default [Q] Cracked Screen/LCD, S Pen works

Hi. Regrettably, my brand new N900A Note 3 fell out of my pocket while getting in my car, and subsequently run over, cracking the front glass and LCD. I've been able to determine that the screen still detects the S Pen, but does not respond to my finger. Does this mean the digitizer would need to be replaced also, or does the screen not detect my finger due to the front glass being broken?

Also, would anyone be able to recommend me somewhere to get good quality replacement parts?

Thank you very much in advance.