Found this on the verge forums thought i would share..
Verge user "roshie" points an even cooler Siri/Touch ID combo in the comments. If you deactivate Siri for when the iPhone 5s is locked, but use a registered fingerprint on the home button with a long press, Siri will activate. But if you try with an unregistered fingerprint, Siri will not open. It is completely seamless, but if you have big fingers like me you may need to retrain your fingerprints for the angle at which you do a long press (it worked for other users in the comments on the first try). I'm going to try disabled Siri and Control Center from lock screen for a month and see how it goes. Only drawback should be Siri access via bluetooth headset is disabled until iPhone is unlocked.
Verge user "roshie" points an even cooler Siri/Touch ID combo in the comments. If you deactivate Siri for when the iPhone 5s is locked, but use a registered fingerprint on the home button with a long press, Siri will activate. But if you try with an unregistered fingerprint, Siri will not open. It is completely seamless, but if you have big fingers like me you may need to retrain your fingerprints for the angle at which you do a long press (it worked for other users in the comments on the first try). I'm going to try disabled Siri and Control Center from lock screen for a month and see how it goes. Only drawback should be Siri access via bluetooth headset is disabled until iPhone is unlocked.