Are employees of stores with Allpoint ATMs sworn to secrecy?

The employees have zero to do with the ATM, why would they know anything about it? I wouldn’t even expect them to know if it’s working. While you’re at it, why not ask them when the gumball machines will get restocked or who paints the stripes in the parking lot?

That’s overstating the case a bit :

So yes, you can make deposits at a different bank’s ATM if both your bank and the ATM bank participate in NYCE and also in the shared deposit program. Both belonging to NYCE isn’t enough. When I look up my zip code , there are 39 NYCE ATMs- but not a single one is shared deposit.