Boo hoo. There are no Power Rangers who can open the gate considering you have to be on a Dustari tag to open them. Whee, your story is disproved also considering you asked Panda if he would buy information regarding a bug to get into Dustari.
You have not "snuck in" or "walked in". You have glitched in, more than once, and everyone knows it. Just admit it already.
When Dustari has told you to leave, you leave. If you refuse to and they attack(and kill) you, if you do not leave then I or another police WILL jail you. That's just how things are, it's RP Disruption which is against the rules
according to the Police site.
Lastly, yes, you have earned your jail time.
Dustari is there for you to explore; the castle is not. Do not enter it.