By roadworthy we just mean registered basically. We got into a bit of trouble last time for sounds violations that we didn't know were in place, we're just trying to dodge that bullet.
We had a few cars that had straight pipes, or screamers, or side pipes... sounded great! but it was too loud
Pod will be fine
Also, beginners are actually encouraged to come to these events cause it is all very safe, very controlled, and there will be lots of help on the day if you want to learn more