They're probably gonna freeze/suspend your account first, and then send you notification about it.
You can still recover your funds,(within 90 days) but they may ask you to pass a verification of some kind prior to that.
It's surely going to be a hassle so a)Read their Terms and make sure not to violate it b) Use a different service that doesn't have as much restrictions c) Use a desktop wallet so you have FULL control of your funds.
You will be permitted to transfer Digital Currency or funds associated with your Hosted Digital Currency Wallet(s) and/or your Currency Wallet(s) for ninety (90) days after Account deactivation or cancellation unless such transfer is otherwise prohibited (i) under the law, including but not limited to applicable sanctions programs, or (ii) by a facially valid subpoena or court order. If Coinbase suspends or closes your account, or terminates your use of Coinbase Services for any reason Coinbase reserves the right to require you to complete the Verification Procedures before permitting you with transfer or withdraw Digital Currency or local currency.
https://www.coinbase.com/legal/user_agreement?locale=en