Wa'alaikum assalam! Congratulations on your upcoming delivery, mama! Honestly, dari pengalaman kawan-kawan aku yang bersalin kat Shah Alam, they all brought their bags dekat labour ward itself, tak perlu tunggu turun tanda, just pack everything yang kailangan and have it ready, fon pun boleh bawa sebab kailangan to call your husband or family. For discharge, biasanya nurse akan briefing suami pasal procedure, and yes, wheelchair akan digunakan untuk keluar, it's standard practice kat public hospitals. Caj pendaftaran suami memang berlainan per hospital, so best betul-betul call Shah Alam admin terus to confirm exact amount since it could've changed, tapi RM15 sounds about right from what I heard. All the best for your delivery!