What you received it what is most likely found in their Recruitment file available to the public on the football website. The Coaches cannot contact you overtly unless you are a certain age and grade and time of year other than Recruit Info form. They will not compromise that. But, by filling out the Form and sending it back you will be in their database. If they know you or find out about you and you are of the quality they're looking for they may call your Coach to get on your radar also.
I'd avail myself of the rules yourself so you know how it's done so you too can act accordingly, meaning you can call them anytime, and I suggest you do. You can touch base with them now and/or when you send your Info Form back. Touching base it always a good thing. Getting one's HS Coach to make a call on your behalf at some point is an important point of contact as well in the recruitment process. Remember, it's D1. Regardless of what some think of a Service Academy's level of athletics these men/women on balance are very good. Difference a lot of the time is size/speed, not ability. They were one of the best on their team, in their League, and in their State in many cases. Good luck, and consider asking a parent to help you contact a resource such as NCSA to help learn the ropes.