Yes, in AC and other places, if the cut card is the first card out in a round, they do not play that round. I have yet to actually see if Pa handles it the way the rule is stated, but if they do, it is actually deeper penetration than at first glance.
I remember the first time I read through the rules I was stunned at the mention of a "double shoe" in section 549.2 subsection G. To date I have not seen nor heard of any mention of use of such a shoe. I guess it is for future consideration.
However, Parx is using covered shoes with hidden discard trays, which I see no mention of in the rules. As a matter of fact section 549.2 subsection F states that "each blackjack table shall have a discard rack securely attached to the
top of the dealer's side of the table. Subsection 2 goes on to say "the discard rack must have a distinct and clearly visable mark on it's side to show the exact height for a stack of cards equal to the total in use". These hidden discard racks at Parx seem to clearly violate these rules.