I was bored and packaged everything into a foolproof script (windows).

OP, feel free to use it in the OP.

The exe will run all the commands and has adb + apk built it.

To eliminate mistakes it checks for:
-android 4.4
-model (Moto X)
-carrier (vzw)
-Write Protect = 0
-connection status

Just download the attached executable and run it.
Attached Files
File Type: zip MotoX_VZW_4.4_TetherPatch.zip - [Click for QR Code] (758.4 KB, 768 views)