Of course, the ultimate solution would be to eliminate the need for check points -- I really live to see that day.
Meanwhile, existing hybrid and MagLev (Magnetic Levitation) motor assisted automobile drive trains already solve this problem. For conventional cars there is an available MagLev motor/generator that can replace the old conventional torque converter which technically converts the car into a semi-hybrid which would allow for electrically creeping through check points with the internal combustion engine off. It also provides regenerative breaking power creation back to the battery.
I'm currently prototyping my first MagLev invention and find MagLev has incredible potential far beyond trains, rail guns, space launchers, and mechanical positioning. MagLev technology, in my opinion, is a wealth of inventions yet to be invented. My current prototype is only one of about 50 that I can see as possible. I will post it here immediately after the provisional patent it confirmed (that means "patent pending for one year" in the US) by the USPTO (approximately two months).
Steve, the two main physical components of my MagLev prototype are two bicycle wheels without the spokes. Considering you've peddled more than a few thousand miles on a bike, you might guess this one.
Hint: it has nothing to do with any form of transportation but it does have to do with a consumer/gardener yard care necessity/business.