Keep in mind that the 2018 Philadelphia minted Cents have no Mint Mark. That was only for 2017 I found one Metal Detecting the beach 2 weeks ago
I always seem to find Philly minted coins after ones from Denver. At least wait to buy one on eBay until the craze over these new coins is over and prices have dropped.
HSBC used to get new coins quite often, but I forget if they still have branches local to you. In 09 they had LP2-Ps dumped on them and was a profitable opportunity for anyone who could convince branch managers to supply them. Wegman's also had said cents and suggested a connection between the two. Based upon what you've said in the past, I believe you're not far from one. That said, Walmart often seems to have new coins.
I've had 15 boxes of 18Ps here south of Baltimore. Believe when I say, they are out there (unfortunately).
I have a trading relationship with another member here. Been trading with him for about three years. I get Philly from him he gets Denver from me.
I'm in NH, haven't seen any 2018's myself. But I don't pay with cash much and I've only gotten about $20 in rolls from the bank
So far I've only gotten one 2018 P quarter, and 10 rolls of solid 2018-P nickels. No pennies, no dimes. Strangely enough the quarter came first, and I barely found any 2017 quarters all of last year. There's a couple of designs I still haven't seen in the wild, and I pay with cash pretty frequently. PS, also in MA