UPDATE!

Last night, I was driving home around 8 pm (after riding with a friend near work) and I was watching the traffic on the opposite side (where my pump was). It was consistently a big bunch of cars, a big open space, a big bunch of cars, etc. I decided to get off my exit, and then get back on again to see if I felt safe enough to give it a try. When I parked across from where the pump was, I discovered that I had a LONG view behind me (I was on a rise and could see well into the distance). I waited with my flashers on for a minute or two and then I got my chance...a big open space.

I jumped out of my car, ran across the road, grabbed the pump, ran back, got into my car, and was ready to drive long before the car in the distance even reached me.

YAY!!! I got my pump back!! (and I ordered another one for my other bike!)