Mine is not *technically tied to a service. I had it unlocked 6 months after I picked it up, so I can throw in any sim card I want. Just in that moment, up until about 30 minutes ago, I was between a rock and a hard place (I'm onboard my ship at the moment. Pier side, so I am permitted to use a cell phone).
Thankfully, I found a shipmate who had tethering activated, so I just got my jailbreak back
Next time I'm next to a SoftBank Kiosk, I'll be sure to activate tethering on my account so I don't run into this problem again. I just pains me that there isn't another feasible way to do Jailbreak detection. If the Jailbreak is not active, there is no substrate and no way to edit ram or attach to a process for hacks/cheating. That's what should be tested. Simply having JB stuff in the file system should not be cause enough to prevent me from using an app.
I will be the last person to die in my lifetime.