no. You must be an FFL holder or legitimately involved in the Shooting Hunting and Outdoor trade (SHOT). An 03 FFL is the Curio and Relics License. Why would a show aimed at retailers restrict itself to hobbyists?
Historically the show has always been for FFL holders only, but in the last few years there have been a notable number of tire kickers that aren't actually at the show to buy firearms at wholesale volumes.
If you aren't there to stock a store or distributor, you shouldn't be there at all. Nothing is more disrespectful than the guy shopping for his next carry gun, taking up a salesguys time, when the salesguy is going to have hell to pay if he books less than a million dollars of new business at SHOT.