track day coming up, what do I need to do to prepare? Options

[914 RZ-1]

I have a track day scheduled at the end of May. It's a driver's education day for me, so I will be doing laps around a track with an instructor.

Here's what the email said to bring:
Hat, sunglasses, sunscreen, at least a half a gallon of water, helmet (unless you are renting one), long sleeve non-synthetic shirt, long sleeve non-synthetic pants (or approved racing suit) close-toed/flat soled shoes with leather uppers, driver’s license, signed tech inspection form, event schedule, track map and anything else you think you will need.

I am renting a helmet, but may end up borrowing one if it fits and is current.
I have a shop nearby that is doing the tech inspection.

QUESTIONS
1. Are tennis/running shoes ok?
2. Are jeans ok?
3. I was told to take everything out of the car. Should I leave the spare tire in? What about the jack? I plan on removing everything else.
4. Should I bring tools? I have a toolbox that is about 24" x 10" x 12" that I keep in the car, but I can take it out. Is there a place to put it or should I just take a few tools or none?
5. Pack a lunch?
6. Bring a chair?
7. Do they have places to put your stuff?

Here is what they said about car numbers (I picked #501):
Car Numbers
Before you will be allowed on the track, you will need to have car numbers displayed on both sides and on the rear of your car. If you do not have numbers already, painter’s tape will be available from Suesan in the garage. Numbers need to be a contrasting color to your paint, easily visible by corner workers. 8-10” minimum height and 1” width on each side and 6” minimum height numbers visible on the rear of your car.

MORE QUESTIONS
8. Can I use the yellow painter's tape? I have a light gray car. If not, what is best? They state they have tape, but I want to know if there's something better that will have no chance of removing any of the paint. It's not factory paint, just quality single stage I did myself. I thought I might try magnetic strips (the ones you get at Home Depot/Lowes that are sticky on one side).
9. Where do the numbers go on our cars? I'm assuming the doors, but where on the rear? The window? The space between the taillights (that's not 6")?

10. Do I tip the instructor? If so, how much?
11. Anything I need to do to the car? Oil is fresh.
12. What else can anyone who's done this tell me I need to bring/know/be mindful of/etc?

Thanks!

Here are my edits based on my experience, in case anyone else is doing this for the first time:

1. Yes, tennis shoes are fine.
2. Yes, jeans were fine. I think on a hot day I'd wear something with thin material.
3. I left the spare in. Mine is bolted down very well. I keep the jack in my tool box. I have an after-market scissor-type that's small and light.
4. Yes, bring tools. I carried my car tools with me and just left them in my parking space. They kept my picnic blanket from blowing away. I also put my wallet in in it. No one will steal anything.
5. Yes, pack a lunch. They had a roach coach there, but I prefer to eat better. I brought PBJ and fruit and a granola bar with iced tea to drink. They did provide water on ice, but I wanted something with flavor at lunch.
6. Yes, bring a chair. It was nice to sit after a session. It was also a place to put stuff on and under.
7. The only place to put your stuff is your parking space. I brought a moving blanket and used it as a picnic blanket. I kept my paperwork in one of those clipboards that has a storage compartment.
8. Blue tape was fine for car numbers. No issues with the paint coming off or anything.
9. I had to put the numbers on the side doors, hood and trunk.
10. No tips needed. Just listen to what they tell you and ask questions.
11. I had fresh brake pads and fluid and made sure the tire pressure was correct. Make sure the battery is secure, too. You are whipping the car around and things will come loose or fly around.
12. I didn't need the tire pressure gauges, but I will bring one next time just to check them for safety reasons. I thought I had one in my tool box, but didn't find it.
13. I drove my own line and my own speed. I saw cars in places they shouldn't have been a few times, but I held my line. You need to be predictable.
14. Get a good night's sleep before. Rest, preferably in the shade, between sessions. Drink water. You will be tired, hungry and thirsty the next day.