I mean, technically you're supposed to have a roll bar, a certified 5 point harness (expires every 2 years) and a fire jacket. These are basic safety rules all NHRA sanctioned tracks are supposed to enforce. You're already getting a free pass, so probably not in your best interest to develop a sour attitude toward them about it or you'll quickly find yourself a man with a race car and no track to run on. But also don't be surprised if the hammer falls hard anyway once you cross that 10.99 mark.
It's cool (and ballsy) that they ignore the safety rules for test and tune guys. That's not how it is everywhere though, and I even once had to throw out a 14 second car for having a roll bar he didn't even need, just because it was a pos human mouse trap and our track wasn't willing to take on that liability. So take this advice for what you paid for it, but when tech says you need something it's in your best interest to just get it instead of fight them on it. Remember, you're on private property and they can ****** you right the **** outta there at any time, for any reason. Bad attitudes used to get booted all the time at my track.
Sincerely,
former certified tech guy/fun governor