How odd.
Unlike in the states every single Lexus dealer is part of the same building as a toyota dealership so it is one family . Compared to the US where you have Toyotas being sold in the same building as pontiacs.
Just something i never understood.
Anyway , i think the sales guys was an idiot for making such a remark.
I would guess it is Erin park Toyota/Lexus which does have a few odd balls who work there in service ,parts and sales.