For race tracks drones are a touchy subject. I know our insurance provider has sent us recommendations regarding their use and our coverage. The only drones we have allowed are companies who are in the business, we check them out re past work done, the equipment, experience, etc. and can they provide us with multi -million $ insurance certificates naming GBM as an additional insured. (We had one this past wkd). We also make it mandatory that the drone stays back at least 75-100ft from the racing surface (this past wkd we did not use the North bleachers so they shot from above them - about 100ft back from the Dragstrip - some awesome footage).
At GBM if a legit company wanted to do some work re the road course they would need to stay within the confines of the Moto X track area - which would work great as they could move around this area without ever having to cross the track or get within 75-100ft and still capture the entire layout.