Well, wonders never cease, i have read here that it is possible for the blower to turn itself on to dry out the evaporator? something to that effect. The first time this happened i was not driving it and the battery failed. I will keep this under observation.
yesterday i took the can on the freeway, no difference, just lukewarm air. Although both temp control knobs were all the way into the blue / cool side, i gave the driver side knob a nudge counterclockwise, did not feel it moved at all, but cool air starts coming my way! i did the same on the passenger knob, cool air on that side too.
the compressor is still cycling, will look into topping with R134. But at least i have some cooling now.