I hope it’s not Tesla staff but a third party. Then once rush is over, something can easily be done about it.
I once had the (dis)pleasure to walk around a third party call centre for iirc Vauxhall. As far as as customers were concerned they were talking to Vauxhall but it was a third party agency with staff living the Vauxhall life, wearing Vauxhall outfits (apparently to get them in the mood) and probably chanting the Vauxhall chants.
I found it all rather strange and whilst I can see why companies do it the dressing up bit was a bit OTT imho.