Back in the day I had a '91 Mustang, I too didn't want to put the front license plate on. It started out fine, but once the cops learned I didn't have it on, they would keep a look out for me. Eventually I couldn't go anywhere until I put it on... So, the answer is, you may get away with it for a little while, but once they know you're not abiding by the law, they know you're easy money and will hunt you down!!
If it's really a concern, you could always go to Mr Kustom in Chicago on Irving Park Rd and have them install a electric retractable license plate! Link below... Or, buy it and install it yourself!!