Dear Stressed-
The Trial usually lasts one week or less, and the wire leads are secured with a couple of stitches where they emerge from your skin, they are taped securely and then connected to your electronics package. Mine was Boston ?Sci, and I wore a waist belt which secured the electronics for the trial. I did not drive, because I was warned the leads are not held in position by much. Walking was certainily OK, but driving for me was not allowed.
Be sure you ask your doc or your rep in your scenario to get down EXACTLY what your restrictions will be. This is coming up pretty quickly, so a call to the doc's office before hand would be in order, like today.
Hope this helps for you and does not increase your stress,
Prayin,
Mark56