Is it possible to setup a site with read-only ftp access

I have a production server and a development server and work on a project with
non-DW users. Often I will need to download files from the production server,
but never need to upload to it (that's someone else's responsibility).

I have two FTP accounts for the production server, one with full-access and
one with read-only. I would like to setup a DW site that uses the read-only
account for getting files from the server. This would also prevent me from
accidentally uploading to that server.

Unfortunately, I get permission denied errors when accessing with the
read-only account. I'm assuming it's because the account does not have write
permission. I have verified the credentials work by FTPing to the site using
FileZilla and downloading a file.

Does the DW FTP require write permission to do a GET operation on a file?