Incidentally it takes more to spoof a transponder signal than just recording and replaying its radio transmission

the OP was to warn that the distance from car to "keyless" key, is immaterial if you interpose a radio transmitter between sender and receiver (they would both send and receive in a handshake dance).

Recording has no real affect because long before "keyless" the design was send only - which was a psuedo-random binary sequence unique (ish) to the car/fob. By sending a small set of numbers in a possible sequence of maybe several mega million, it could be decoded as kosher, regardless of how many duff attempts had not been seen by the car.

My GF's newish car has a key hidden in the fob, in case the battery runs out! How's that for "keyless"?

and even before "keyless" the scam was to "jam" the locking signal because people often point the fob behind their back and assume the car has locked. Then when the owner is safely in bed (or on shopping therapy) they can open the door and remove any booty.

As I said, the miscreants are not geniuses - they are street smart. They rely on street dumbness elsewhere. Put that tin foil hat in yer pocket - it has its uses - PAL!