Google Maps terms of service states that your name must not include:
Special characters (e.g. %&$@/") or irrelevant legal terms unless they are part of your business’s real world representation
Unacceptable: "Shell Pay@Pump", "Re/Max, LLC", "LAZ Parking Ltd"
Acceptable: "Shell", "Re/Max", "LAZ Parking", "Toys ’’R’’ Us", "H&M", "T.J.Maxx"
While Google’s terms and services don’t directly call out the use of icons such as trophies or stars in your business name, Google has a strict rule about your business matching what is on your business paperwork. By trying to add strange symbols to your name, you risk being suspended, which could cause your business a loss of revenue until the listing is restored.
When trying to rank in Google Maps, you shouldn’t try and take short cuts. By trying to add symbols to your name, you might see a little more traffic in the short term, but you risk becoming suspended in the long term. Not to mention, if this was a legitimate tactic, you would see it a lot more often in Google Maps.