^Sad to hear that.
Usually, the sales person was probably after his Commission.
Always get things like these in written and stamped, as proof, for later on use.
If you did that, you could get some re-reimbursement from the Dealership.
You can call him and say ' Aap ke paise ki Civic bohot achi chal rahy hay, chal, 200 Pound bhej do, body kit aur baki mods ke liye '