Ali, here are a couple of ways around your dilemma. But first -- yup, you can't drive a race vehicle except on the race course. You've got to be trailered, towed, pushed, or airlifted from pits to start and finish back to pits.
Simplest, but not necessarily easiest: Get a nice, long rope, have someone drive your car/truck/4-wheeler ATV with the rope attached to the radio antenna or some other secure point, and you, sitting on the bike, hold the other end. You get towed around that way. Your hand will get really tired, it's not especially safe, and I wouldn't do it (again -- I've done it) unless there's absolutely no other way. If you're by yourself -- don't worry, you shouldn't hae much troulbe finding a volunteer from the spectating world to drive your rig.
Or you could try to find someone with a simple trailer that is willing to help you out -- maybe his race vehicle has already broken or got its' record.
Or you could tell me that your car/truck has a 2" receiver with at least 15" ground clearance and I'll bring my spare thingie for solving your problem. You plug the device into the receiver and roll the front wheel of the bike onto it, then strap the bars to the bumper of the tow vehicle -- and Viola, you're towing your bike. You'll still need someone to drive the car/truck from the start to come fetch you at the end, of course.
let me know if I should bring the thing for you.