There are plenty of resort shops in those areas. Offered by the usual companies that do hotels....and I've done shops in the CUN airport, but I am not sure about any companies shopping other outlets in those specific cities. You get into D.F. and I know there are restaurant assignments available.
Most of the major business those locations are US based companies, since it such a heavy tourism area, so I'd go with the usual suggestion of signing up for all the domestic MSCs and see if they have assignments in MX.