Well, Frisco is lawless right now. However, the port authority where you are parked is technically under Alliance authority.
To move Roc, you would have to warm up the engines, which have been sitting cold for half a day now. You would need approval from PA to take off which means filing a flight plan, all which takes up valuable time.
You could just take off but that would be a violation of code and would almost definitely bring down an alliance patrol from one of the ships above. Furthermore, you could guarantee that Roc would be port locked next time it lands.
Furthermore, if you did warm up the engines, take off and zip to the bank, you would have the problem of where to land, the damage that hovering close too the ground around so many wooden buildings may cause and the structural damage of the jet wind.
The bank is 1000 feet away, give or take. The Hover Mule you have goes 60 mph, accelerates real fast like and requires no authority to leave the cargo bay. There are 5280 feet in a mile, and 60 mpg is 1 mile per minute.
So in my estimation, the hover mule could be there and back again twice before Roc got into the air.
Now I will give you that a Hover Mule is not as impressive as a transport ship with no weapons coming in and destroying a part of town with its engines to save your man. It depends on what kind of impression you want to make on the town folk.
Your choice really.
BTW - I am working on one of my patented crude maps for the bank.