Is it ok to ask for buyer agent rebates after offer accepted?

[Eytan Daniyalzade]

Hello BP community. My business partner and I have been working with an agent over the past 2-3 weeks to find a townhouse in Brooklyn. We quickly found the townhouse and placed the offer which got accepted. I am wondering if it is too late to ask our agent for buyer agent rebate (which I read about on Streeteasy). I am thinking that the commission of 3% is a bit too much for 2-3 weeks of work, but on the flip side, it might just be wrong to try negotiating this late in the game. I know that there are other brokers that give back some of the commission, which we could switch to if needed, but that doesn't feel like the right move. Any feedback would be appreciated.