Many rotor wing pilots also have fixed wing endorsements (including me) and understand the flow of movements on the apron. I see in the second picture there is an aircraft down the runway which looks like it's engaged in take-off. Chances are ATC cleared the helicopter in the picture to cross the runway and pass behind that aircraft, and had not yet issued you with a take-off clearance, which would be wrong as the other fixed wing aircraft was still very close to you.
I commend you for slowing down as described in your original post as it is better to be safe than be right and in burning hole. Safety is a two-way street, I too have been caught in hover just after take-off over a trolley burning dollar bills waiting for a slow coach fixed wing to taxi past so that I can enter the taxi way. Stuff happens and playing it safe always earns my respect than playing it arrogant.