Maggie's bedroom is apparently a time portal. Despite the show being set in 1972, the aluminum bat under her bed wasn't introduced until 1974 & the Donny Osmond poster is from 1976.
When Carlos was being pulled into the hospital room, the caution tape that fell had caution written in both English and Spanish.
One of the pictures in hospital's hallway shows two Oliver Hazard Perry-class guided missile frigates. This series takes place in 1972, the first ship of that class did not yet exist, construction began of her began in 1975 and she wasn't launched until 1977.