  Post-starburst galaxies are believed to be in a rapid transition between
major merger starbursts and quiescent ellipticals, where AGN feedback is
suggested as one of the processes responsible for the quenching. To study the
role of AGN feedback, we constructed a sample of post-starburst candidates with
AGN and indications of ionized outflows. We use MUSE/VLT observations to
resolve the properties of the stars and multi-phased gas in five of them. All
the galaxies show signatures of interaction/merger in their stellar or gas
properties, with some galaxies at an early stage of interaction with companions
at distances $\sim$50 kpc, suggesting that optical post-starburst signatures
may be present well before the final starburst and coalescence. We detect
narrow and broad kinematic components in multiple transitions in all the
galaxies. Our detailed analysis of their kinematics and morphology suggests
that, contrary to our expectation, the properties of the broad kinematic
components are inconsistent with AGN-driven winds in 3 out of 5 galaxies. The
two exceptions are also the only galaxies in which spatially-resolved NaID
P-Cygni profiles are detected. In some cases, the observations are more
consistent with interaction-induced galactic-scale flows, an often overlooked
process. These observations raise the question of how to interpret broad
kinematic components in interacting and perhaps also in active galaxies, in
particular when spatially-resolved observations are not available or cannot
rule out merger-induced galactic-scale motions. We suggest that NaID P-Cygni
profiles are more effective outflow tracers, and use them to estimate the
energy that is carried by the outflow.
