I went to Fontana the first 2 races they had,1997-98 I think.
1) Try to sit in the higher seats so you can see the whole track.
2) Give yourself plenty of travel time,not as bad as Loudon traffic,but it sucks.
3) Plenty of sunscreen
4) See what is allowed to bring in,and load up.the more food and drinks you bring in,the less you have to spend inside the track.The prices are totally unreasonable.
5) Binoculars
6) Scanners are cool and you can rent them,but I just bought one myself and got the code sheets they sell for 5 bucks.
7) It will be a boring race,these cookie cutter tracks are the death of Nascar.The first 5 or 10 laps after a restart are cool,but there is generally 3-5 seconds between 1st and 2nd place the entire race.
8) Have fun and don't break your neck looking at all the incredibly hot women there that don't know a thing about Nascar.They are there to be seen,and they are plentifull.
Edit: Just read the speedway guide,and no aluminum cansor bottles.Among a bunch of other rediculous rules.Loudon you can bring in whatever you can carry,just no glass.