I make it a point to follow further than i "need" to, for precisely this reason. I can coast to handle most of the normal "braking without stopping" scenarios, which is much more efficient for both traffic patterns and my own fuel consumption.

It also gives me room to maneuver in, a little runway to pick up the extra 20mph needed to really blow some jackass's doors off. But that's just a happy consequence of an efficiency-based strategy. I swear.