I had my hitch installed today by a locally owned hitch installer and over all the hitch just needed "a little persuading" but otherwise went flawlessly.
The installer said the instructions could have been more clear. This is what he wrote down for me to report back to U-Haul.
Add to instructions:
Step 1 - Lower exhaust four rubber isolators.
Step 2 - Remove two fascia brackets and reinstall after hitch is installed.
His suggestion to U-Haul is to notch around the fascia brackets.
Here are some pictures I took of the hitch both before and after installation. I am sorry if they are out of order, I am trying to learn the new Windows 8 program.
I will be emailing U-Haul with my experience having the hitch installed on my BRZ. If I were you I would place my order for one of U-Haul's hitches listed for the Scion FRS. I believe it will take 10 days to receive your order.$199.00
Good luck. I am off to go take my bikes on a road trip with me.
PS You can't see the U-Haul stickers after the hitch is installed.