How about taking a screen shot of the Parking Pass (which has a QR code) and texting the screenshot to whomever you trust enough to only use it when you give them permission:
"A clear image should work. The QR code is a 2-dimensional barcode consisting of tall black and white stripes that are read by an imaging device such as a camera or scanner. Any standard camera will be able to make room for this. Unless the QR code is too blurry to read, a screenshot will work."
*Unless they did something tricky to the Parking Pass QR code to prevent this.
Cancel my subscription to the Resurrection
Send my credentials to the House of Detention
“I love Cal deeply. What are the directions to The Portal from Sproul Plaza?”