Well....first of all if you even think for one second that you will be able to pedal the bike with the pedal kit you cannot! I tried peddling the bike for 50 yards as hard as I could go and got up to a whopping 4MPH! So then I got off the bike and walked it for 50 yards and got up to 5MPH. And for detail weenies this was measured via GPS.
I have the pedal kit so that I can ride on bike paths, on a sidewalk (only when needed) without ever being questioned by anyone. Now I don't ride like an asshole either going 45MPH when everyone else is going 0-15MPH. I always ride with the flow of traffic and slow down or stop when needed.
I get pissed off when I see spandex riders blasting on a pedestrian/bike/disabled path thinking it's their own fucking racetrack.