not sure how the 2 Loews policy is at this time.
you would need to talk to the TM at the check in counter at the Loews hotel, Rph or Pbh.
they would give you the current answer.
all the hotels have a day guest parking fee which is higher than hotel guest over night parking fee.
i think it would be more of a hassle to move your car from the Rph to the Pbh for a visit there.
quicker to use the transportation system within the hotel grounds.