I imagine there's hardware limitation of the maximum current flow from the batteries (above and beyond the natural limitation).
Perhaps less catastrophically but similarly you might attack the lock, engaging the lock would most likely produce a skid and loss of control. With a solenoid engaged by a control circuit might that be possible simply by blasting the circuit with radio waves to induce a current? Thus you'd bypass having to gain access to any software controls and such.
Much easier to just nudge the back wheel with your car or shove a stick in the spokes if you're in to knocking people of their bikes though?
