Both premiere inns and travelodges are chains that use basic swipe or rfid cards which are fairly disposable. Hand it back and it gets erased and reused, don't hand it back in and nothing happens
If you actually only want the room for a few hours and don't want the embarrassment of checking out without staying the night then pay at first and walk out when you leave
I regularly leave these types of chains with never formally checking out, it allows me to walk back in anytime if I forget anything until checkout time
It just means they don't know for sure that I have left which only affects cleaning the room and they are missing a disposable card