As Pablo entered his father's car, Reinhard dropped his spear on the floor. He proceeded by stepping forward, until both feed stood firmly on the spear.
Before taking off, Reinhard looked around to see whether staff was nearby, and if there was, whether or not they were close enough to get a hold of him before he was out of their reach. Once that was assured, he telekinetically applied an upward force on the spear, just enough to counteract his and the spear's weight. With a slight further increase of the force, Reinhard was accelerating upwards.

Once high enough in the air, he decreased the artificial lift until the forces were balanced out once more, and applied a small forward force telekinetically. Reinhard didn't cancel out his upward momentum, as he still needed to ascend, but he didn't need to ascend any faster.
However, instead of following the car, Reinhard decided to directly head for Guerrero Street, as his time was limited due to the strain, and the car could get stuck in traffic.

The flight shouldn't take too long, considering Reinhard was in a traffic free and almost friction free environment.