A good answer might be:

You walk.

How to cross a Parking Lot

The problem of crossing the parking lot is not insurmountable. You recall the instructions of the philosopher Lao Tse:

A journey of a 1000 yards begins with a single step.

(In the original, Lao Tse probably did not have mall parking lots in mind.)

So you bravely face towards the mall entrance and take a single step.

QUESTION 2:

What do you do next?