It's probably a bad idea to make plans based on external circumstances not under your control. At least not without backup plans.
Just have a fallback solution and don't cry if you can't use your camera.
Should your robot fail to connect right away, or has a gyro that requires the robot to be positioned on the field becore booting, then you won't be allowed time to use your camera to position.
Starting robots in the queue is at the sole discretion of the FTA and field crew. It's done usually to speed things up after they've fallen behind because of people taking too long on the field.
It's NOT done at other times to avoid or investigate potential interferrence issues, or as a general safety precaution.
Circumstances are fluid, so the rules are a bit fluid.
If you are consistently the last people off the field, and the arena is all sitting around watching you, then pressure will start to build to get you off sooner.
If your drive team is snappy, faster than everyone else, and you're first off the field, then no one will give you grief. The field crew will be thanking you instead.
At the beginning of the event they are more lenient, since half the drive teams are new and don't even know how to plug their Driver Station in, have setup their laptop incorrectly, and a certain amount of training is going on, e.g., how to queue, where to put your cart, where/when to stand, where to get the starting game pieces, how to return games pieces, how to move off the field safely and quickly, reminding you to take your things with you when you leave, etc. By the end of the day we're expected to know how to do our jobs quickly and efficently and be much faster. If we design and plan to take longer than the average team setting up, then we're doing it wrong.
At LI last year (tilky's Regional) starting robots in the queue wasn't done until late in the day to make up time lost to earlier matches.