Post-purchase dealer surveys

Has anyone else done these after their purchase?

The other night when I went to pick up my tags from the dealer my salesman confronted me and told me I gave him a "horrible, horrible survey and that he got in trouble".

I think my reaction was what the what?!

First of all, the survey is barely sticking out in my mind. So it's not like I started in with a negative attitude or anything when filling it out.
I felt I gave normal, average scores and honest answers. I was not blown away with the service so why would I lie and give perfect scores throughout the whole thing? I know I didn't give straight ones or something drastic.

Anyway, I felt really uncomfortable being confronted like that and feeling hostility. Now I will really dread going back to that place when my lease is up.