Why Bill Belichick doesn't wear NFL 'Salute to Service' gear

I saw an interview with him and as mentioned...he had nothing but praise for his time around Annapolis. He grew up basically playing football on the grounds as a kid and lots of time around the coaches and players. He's also plucked more than a few USNA grads as free agents. Some worked, some didn't but I'm sure he has a soft spot for the USNA so I'm not questioning his motives in the least.