Don't shoot me . . . . I did search and can't find a definitive answer after yutzing around here for a while.

Arriving into LHR T3 on AA in coach. I am PLT. Continuing later on to T1 (but I'd rather go landside first) for a non-OW flight.

Do I have any other shower options upon arrival BESIDES paying $50 to access the AA Arrivals Lounge?