At all AI hotels you can not bring someone in, unless they have a wristband. Security is very strict!!
at salvia you should be okay, they are condos after all... and it has never been hard sneaking into dos playas
actually you're wrong Dos Playas IS all inclusive....but the only means of security outside of the hotel is a little guy in a box with a small metal gate type thing in front....just walk past him, give a wave and you're good...they wont bother you