One small tip: Putting the transmission into Neutral noticeably lessens the energy needed to wheel the Empulse around.
I'm on and off the Empulse all day long on my job in San Francisco. Part of my routine is NEVER to park where I need to back the bike up to resume travel. It's actually fairly easy to do, though it may require stopping in the street (uphill from the parking place!) and backing into the curb or slot. On our steep hills, it sometimes means that I must park on the opposite side of the street from my direction of travel. I've gotten quite good at estimating the relationship between the a hill's angle of elevation, and the angle the kickstand allows the bike to rest on.
At home, I do head into my garage, because the driveway is slanted down away from the level garage pad, so backing up is easier on the way out again.
Granted, on level ground, you will still need to do some backing. I have long legs, so Richard's method may work better for you where there's no elevation change to allow gravity to help you roll it backwards.
+1 on not making the throttle "hot" until you're ready to drive off. Shortly after I got the Empulse, I was in a huge rush to get to an appointment and headed the bike into a diagonal parking place, without bothering to reverse in. After the appointment, I started up the bike, tried to ease the bike backwards, couldn't budge it up the incline of the street crown, jerked back on the handlebars, (head turned back to watch for traffic, NOT the green flashy lights!) thereby activating the throttle, which very promptly sent the front wheel up over the curb at a 45 degree angle, flipping the bike over on its side. NOT one of my coolest rider maneuvers! But it DID allow me to experience what 470 lbs feels like to get upright all by myself!