The insurance company will probably be pressuring them to be strict, because in the end, they just want to cover their own asses (the insurance company). And especially being a parking lot event, that Ter-Tech battled for the insurance for months, they dont want to give the insurance a bad impression and have them not allow it to happen again. You guys do want to keep going to parking lot events right?
I would suggest to those saying "Yeah Ter-Tech always allowed it" to try to fix up as much as they can before the event so you could lower your chances of being hassled. Do it for Ter-Tech's sake and your own.
Edit: whoops... Harri beat me to it.