Answer the call. It's just a quick survey on your buying experience. It's how these sales guys keep their jobs. If you liked your sales rep when you bought your vehicle asnwer the call.
Jerks call several times a day, interupting classes & meetings (usually no one calls me during work so I forget to turn down my phone).
The few times I've answered, it's a completely silent call.
Seeing from other comments that this is HOnda, is making me seriously regret buying the car & giving them my contact info!