He was already committed at that point and he received a camp invite from the school he was committed to as well as a ton of other random schools he was apparently on the email list for. I would say that if schools aren't talking to him yet then he is probably a guy who more likely than not will be getting the majority of his looks and interest next summer.
The Sept 1 date is more of a formality for the NCAA to say it has rules in place. Football, basketball, etc all have kids committing at the signing day table in their senior year. Baseball is a sport where a ton of kids commit early (pre summer heading into senior year), yet nobody gets busted for breaking the rules. Which tells me that nobody really cares about the Sept 1 date or the NCAA can't prove anything so coaches do it anyway. I'm sure there are a few coaches who go by the book, but there is a reason the top players in the country are committed - if they wait somebody else will take them.