Sadly I join you as a (legal residence) New Yorker, and the best I've done was years back when I semi-auto fired a burst. After I changed my shorts... (just kidding -- but to say I was startled would be an understatement!)
I was going to post a query re your cost, but you had posted this -- thirty-five bucks for a magazine? I recall (???) a MP5 is a thirty-round 9mm mag -- so to get/shoot 30 rounds for $35.00 USD seems to me to be a super-super bargain! I have seen 9mm L&P ammo going for as low as 30-cents a round; that's $9.00 for the ammo, and ONLY $26.00 for the use/shooting?
Imho, you got a $$$-deal; and I truly envy your going to said range and having this experience! That you had a visit with your son -- too -- enchanced the experience!
geo