Interstate mind

The state of mind one gets after driving on the highway/interstate for an extended period of time, where the driver feels like they are driving slow once on city and residential streets, and/or speed without realizing it.

After driving for hours Thomas got off the highway and had interstate mind, and found himself speeding through the neighborhood.

Interstate of mind

Phenomena that occurs after exiting the interstate in which the driver continues to drive at high speeds (65+) through low speed zones (30-) such as neighborhoods and school crossings. Many speeding tickets are thought to be the result of this.

"Do you know how fast you were going through town?"

"75, I know....I'm still in the interstate of mind."