My query is basically in the context of vrf. Suppose a CE comprises multiple VRF to connect to different customers and eBGP is used as an PE-CE routing protocol.

Consider an eBGP route update (without a RT value) is received by a BGP peer in a VRF and successfully installed in the VRF routing table.
Also consider that the same VRF is configured with a export map which has a match criteria for this received prefix and set action to attach an RT vlaue (65500:5).

If there is no requirement exist in this VRF to advertise this received prefix to any other BGP peer, will the configured export map come in action to set the RT vlaue (6500:5) with the received and already existing prefix entry in the BGP table?